PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

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Class Number: 546
 Class Title: ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

Subclass  Subclass
Number    Title

  *       ORGANIC COMPOUNDS (Class 532, Subclass 1)
         .HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING
            CHALCOGEN (i.e., O, S, Se, or Te) OR NITROGEN AS THE ONLY RING
            HETERO ATOMS (Class 260, Subclass 239R)
  1       ..Hetero ring is six-membered consisting of one nitrogen and
             five carbons
  2       ...Heavy metal or aluminum containing
  3       ....Arsenic containing
  4       ....The metal bonded directly to carbon, which carbon is a ring
               carbon of the six-membered hetero ring or which carbon is
               attached directly or indirectly to the six-membered hetero
               ring by nonionic bonding
  5       ....The metal is bonded directly to chalcogen of a -C(=X)X-
               group, wherein the X's are the same or diverse chalcogens,
               which group is attached directly or indirectly to the
               six-membered hetero ring by nonionic bonding
  6       ....The metal is bonded directly to chalcogen which chalcogen is
               attached directly or indirectly to the six-membered hetero
               ring by nonionic bonding
  7       .....The chalcogen is bonded directly to ring carbon of a
                quinoline ring system (including hydrogenated)
  8       ....The metal is in an anion and the six-membered hetero ring is
               in a cation
  9       .....The metal is bonded directly to halogen in the anion
  10      ....Polycyclo ring system having the six-membered hetero ring as
               one of the cyclos
  11      ....Piperidine containing
  12      ....Azide or acyclic nitrogen containing
  13      ...Boron containing
  14      ...Silicon containing
  15      ...Spiro
  16      ....The spiro includes the six-membered hetero ring
  17      .....Polycyclo ring system having one of the two rings which
                form the spiro as one of the cyclos
  18      ......Polycyclo ring system having the six-membered hetero ring
                 as one of the cyclos
  19      .....At least three ring hetero atoms in the two rings which
                form the spiro
  20      ......At least three ring nitrogens in the two rings which form
                 the spiro
  21      ...Phosphorus attached directly to the six-membered hetero ring
              by nonionic bonding
  22      ...Phosphorus attached indirectly to the six-membered hetero
              ring by nonionic bonding
  23      ....Polycyclo ring system having the six-membered hetero ring as
               one of the cyclos
  24      ....Chalcogen bonded directly to ring carbon of the six-membered
               hetero ring
  25      .....The phosphorus is bonded directly to the chalcogen
  26      ...Polycyclo ring system having the six-membered hetero ring as
              one of the cyclos
  27      ....The polycyclo ring system has at least ten cyclos and att
               least four ring nitrogens
  28      ....Nonacyclo ring system having the six-membered hetero ring as
               one of the cyclos
  29      .....The six-membered hetero ring shares ring nitrogen with a
                five-membered cyclo which contains additional ring
                nitrogen
  30      ....Octacyclo ring system having the six-membered hetero ring as
               one of the cyclos
  31      .....Plural ring hetero atoms in the octacyclo ring system
                (e.g., flavanthrone, cepharanthrine, etc.)
  32      ......At least four ring nitrogens in the octacyclo ring system
                 (e.g., naphthoylene dibenzimidazole, etc.)
  33      ....Heptacyclo ring system having the six-membered hetero ring
               as one of the cyclos
  34      .....Two of the cyclos share at least three ring members (e.g.,
                protoveratrine, etc.)
  35      ......At least three ring hetero atoms in the heptacyclo ring
                 system
  36      .....Plural ring hetero atoms in the heptacyclo ring system
  37      ......Ring carbon is shared by three of the cyclos (e.g.,
                 perylene tetracarboxylic acid diimide, etc.)
  38      ....Hexacyclo ring system having the six-membered hetero ring as
               one of the cyclos
  39      .....Two of the cyclos share at least three ring members (e.g.,
                etheno morphides, etc.)
  40      ......Plural ring nitrogens in the hexacyclo ring system (e.g.,
                 reserpic acid lactone, etc.)
  41      .....Plural ring hetero atoms in the hexacyclo ring system
  42      ....Pentacyclo ring system having the six-membered hetero ring
               as one of the cyclos
  43      .....Two of the cyclos share at least three ring members (i.e.,
                bridged)
  44      ......One of the five cyclos is five-membered and includes ring
                 chalcogen (e.g., codeine, morphine, etc.)
  45      .......Nitrogen or divalent chalcogen double bonded directly to
                  carbocyclic ring of the pentacyclo ring system (e.g.,
                  morphinones, etc.)
  46      .......A single chalcogen is bonded directly to ring carbon of
                  the pentacyclo ring system (e.g., desoxy morphine, etc.)
  47      .....Plural ring hetero atoms in the pentacyclo ring system
  48      ......Three or more ring hetero atoms in the pentacyclo ring
                 system
  49      ......Two ring nitrogens in the pentacyclo ring system (e.g.,
                 quinacridones, etc.)
  50      .......Ring nitrogen is shared by two of the cyclos (e.g.,
                  yohimbanes, etc.)
  51      ........Ring nitrogen is shared by five-membered cyclo and
                   six-membered cyclo (e.g., vincamine, etc.)
  52      .........Additional ring nitrogen in the five-membered cyclo
  53      ........Having -C(=X)-, wherein X is chalcogen, bonded directly
                   to ring carbon of the pentacyclo ring system and also
                   bonded directly to chalcogen or nitrogen
  54      .........Plural chalcogens bonded directly to the same cyclo as
                    is the -(C=X)- group
  55      ..........Trialkoxybenzoyl bonded directly to at least one of
                     the chalcogens (e.g., reserpine, etc.)
  56      .......Three or more ring carbons of the pentacyclo ring system
                  are substituted (e.g., substituted quinacridones, etc.))
  57      ........Three or more chalcogens containing
  58      .....The pentacyclo ring system consists of five six-membered
                cyclos (e.g., anthraquinonebenzacridones, etc.)
  59      ......Nitrogen attached directly to the pentacyclo ring system
                 by nonionic bonding
  60      .......An additional ring is bonded directly to the nitrogen
  61      ....Tetracyclo ring system having the six-membered hetero ring
               as one of the cyclos
  62      .....Plural ring hetero atoms in the tetracyclo ring system
                (e.g., acronycines, etc.)
  63      ......Two of the cyclos share at least three ring member (i.e.,
                 bridged)
  64      ......Three or more ring hetero atoms in the tetracyclo ring
                 system
  65      .......Plural ring chalcogens in the tetracyclo ring system
  66      ......Ring carbon is shared by three of the cyclos
  67      .......The three cyclos consist of two carbocyclic rings and a
                  five-membered hetero ring which includes a ring nitrogen
                  (e.g., ergolines, etc.)
  68      ........Chalcogen or nitrogen bonded directly to ring carbon of
                   the six-membered hetero ring
  69      ........Having -C(=X)-, wherein X is chalcogen, bonded directly
                   to the six-membered hetero ring (e.g., lysergic acid,
                   etc.)
  70      ......Two ring nitrogens in the tetracyclo ring system
  71      .....Ring nitrogen is shared by two of the cyclos
  72      ......Two of the cyclos share at least three ring members or a
                 ring carbon is shared by three of the cyclos (i.e.,
                 bridged or peri-fused)
  73      ......The six-membered hetero ring shares ring members with one
                 other cyclo only (e.g., pyrrocolines, etc.)
  74      .....Two of the cyclos share at least three ring members (e.g.,
                morphinans, etc.)
  75      .....Ring carbon is shared by three of the cyclos
  76      ......Chalcogen bonded directly to ring carbon of the
                 six-membered hetero ring (e.g., anthrapyridones, etc.)
  77      .....The six-membered hetero ring shares ring members with one
                other cyclo only
  78      ......Plural chalcogens bonded directly to carbocyclic rings of
                 the tetracyclo ring system (e.g., pyridoanthraquinones,
                 etc.)
  79      ....Tricyclo ring system having the six-membered hetero ring as
               one of the cyclos
  80      .....Plural ring hetero atoms in the tricyclo ring system
  81      ......Plural ring nitrogens in the tricyclo ring system
  82      .......Three or more ring hetero atoms in the tricyclo ring
                  system
  83      ........At least one of the ring hetero atoms is chalcogen
  84      .......One of the cyclos is five-membered
  85      ........The six-membered hetero ring shares ring members with
                   the five-membered cyclo only (e.g., pyrido-indoles,
                   etc.)
  86      .........Chalcogen bonded directly to ring carbon of the
                    tricyclo ring system
  87      .........Nitrogen attached directly or indirectly to the
                    tricyclo ring system by nonionic bonding
  88      .......Phenanthrolines (including hydrogenated)
  89      ......Ring oxygen in the tricyclo ring systemm
  90      .......Plural ring oxygens in the tricyclo ring system
  91      .......Tropane and oxirane in the tricyclo ring system
  92      .......Plural chalcogens bonded directly to ring carbons of the
                  tricyclo ring system
  93      .....One of the cyclos has at least seven members
  94      .....Ring nitrogen is shared by two of the cyclos
  95      ......Benzo(a)quinolizines (including hydrogenated)
  96      .......Additional polycyclo ring system having ring nitrogen
                  (e.g., emetine, etc.)
  97      .....Two of the cyclos share at least three ring carbons (e.g.,
                benzomorphans, etc.)
  98      .....Ring carbon is shared by each of the three cyclos (e.g.,
                1,8 naphthalimides, etc.)
  99      ......Nitrogen, other than as nitro or nitroso, attached
                 directly or indirectly to the tricyclo ring system by
                 nonionic bonding
  100     .......The nitrogen is bonded directly to a carbocyclic ring of
                  the tricyclo ring system
  101     .....Each of the three cyclos is six-membered (e.g.,
                benzoquinolines, etc.)
  102     ......Acridines (including hydrogenated)
  103     .......Chalcogen bonded directly to ring carbon of the
                  six-membered hetero ring
  104     .......Nitrogen, other than as nitro or nitroso, attached
                  directly or indirectly to the acridine ring system by
                  nonionic bonding
  105     ........The nitrogen is bonded directly to ring carbon of the
                   six-membered hetero ring
  106     .........The nitrogen is part of a substituent which contains
                    additional nonionically bonded nitrogen
  107     ........Plural nitrogens, other than as nitro or nitroso,
                   attached directly to the carbocyclic rings of the
                   acridine ring system (e.g., 3,6-diaminoacridines, etc.)
  108     ......Phenanthridines (including hydrogenated)
  109     .......Unsaturated ring bonded directly to ring carbon of the
                  six-membered hetero ring
  110     ......Chalcogen or -C(=X)-, wherein X is chalcogen, attached
                 directly to the six membered hetero ring by nonionic
                 bonding
  111     .....The tricyclo ring system consists of a five-membered
                carbocyclic ring ortho fused to both a six-membered
                carbocyclic ring and the six-membered hetero ring (e.g.,
                indenopyridines, etc.)
  112     ....Bicyclo ring system having the six-membered hetero ring as
               one of the cyclos
  113     .....Plural ring hetero atoms in the bicyclo ring system
  114     ......Ring sulfur in the bicyclo ring system
  115     ......Ring oxygen in the bicyclo ring system
  116     .......Acyclic chalcogen bonded directly to ring carbon of the
                  bicyclo ring system
  117     ......At least four ring nitrogens in the bicyclo ring system
  118     ......Three ring nitrogens in the bicyclo ring system
  119     .......Two of the ring nitrogens are bonded directly to each
                  other
  120     ........Having -C(=X)-, wherein X is chalcogen, bonded directly
                   to the bicyclo ring system
  121     ......Ring nitrogen is shared by the two cyclos
  122     ......The other cyclo in the bicyclo ring system is alsoo
                 six-membered (e.g., naphthyridines, etc.)
  123     .......Chalcogen and -C(=X)-, wherein X is chalcogen, bonded
                  directly to ring carbons of the bicyclo ring system
                  (e.g., 4-oxo-naphthyridine -3-carboxylic acid, etc.)
  124     .....Tropanes (including nor and dehydro forms)
  125     ......Additional hetero ring containing
  126     .......Additional polycyclo ring system having the additional
                  hetero ring as one of the cyclos
  127     ......Chalcogen bonded directly to ring carbon of the tropane
                 ring system
  128     .......Polycyclo-carbocyclic ring system
  129     .......Additional chalcogen attached directly or indirectly to
                  the tropane ring system by nonionic bonding
  130     ........Three or more oxygens attached directly or indirectly to
                   the tropane ring system by nonionic bonding
  131     .........Hydroxy containing or containing oxy bonded directly to
                    a Group IA or Group IIA light metal (i.e., -OH or -OM
                    containing)
  132     ......Having -C(=X)-, wherein X is chalcogen, bonded directly to
                 the tropane ring system
  133     .....Quinuclidines (including unsaturated)
  134     ......Quinoline containing (including hydrogenated)
  135     .......Additional hetero ring containing
  136     .......Three or more chalcogens attached indirectly to the
                  quinuclidine ring system by nonionic bonding
  137     ......Chalcogen bonded directly to ring carbon of the
                 quinuclidine ring system
  138     .....Quinolizines (including hydrogenated)
  139     .....Isoquinolines (including hydrogenated)
  140     ......Plural isoquinoline ring systems attached directly or
                 indirectly to each other by nonionic bonding
  141     ......Chalcogen attached directly to the six-membered hetero
                 ring by nonionic bonding
  142     .......Plural chalcogens attached directly to the six-membered
                  hetero ring by nonionic bonding
  143     ......Nitrogen, other than as nitro or nitroso, attached
                 directly to the isoquinoline ring system by nonionic
                 bonding
  144     ......Unsaturated ring attached directly to the six-membered
                 hetero ring by nonionic bonding
  145     ......Acyclic nitrogen double or triple bonded to carbon which
                 is attached directly or indirectly to the isoquinoline
                 ring system by nonionic bonding
  146     ......Having -C(=X)-, wherein X is chalcogen, attached directly
                 or indirectly to the isoquinoline ring system by nonionic
                 bonding
  147     .......The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                  are the same or diverse chalcogens
  148     ......Unsaturated hetero ring attached indirectly to the
                 isoquinoline ring system by nonionic bonding
  149     ......Unsaturated carbocyclic ring attached indirectly to the
                 six-membered hetero ring through an acyclic hydrocarbon
                 chain
  150     ......Single bond between 3,4-positions
  151     ......N-alkyl or N-alkenyl isoquinoliniums which are otherwise
                 unsubstituted or alkyl or alkenyl substituted only
  152     .....Quinolines (including hydrogenated)
  153     ......Chalcogen attached directly to the six-membered heteroo
                 ring by nonionic bonding
  154     .......Polycyclo-carbocyclic ring system bonded directly to the
                  six-membered hetero ring (e.g., quinophthalones, etc.)
  155     .......Plural chalcogens attached directly to the six-membered
                  hetero ring by nonionic bonding
  156     .......Having -C(=X)-, wherein X is chalcogen, bonded directly
                  to the six-membered hetero ring
  157     .......Chalcogen attached directly at 2-position by nonionic
                  bonding
  158     ........Single bond between 3,4-positions
  159     ......Nitrogen, other than as nitro or nitroso, attached
                 directly to the six membered hetero ring by nonionic
                 bonding
  160     .......Unsaturated carbocyclic ring bonded directly to the
                  nitrogen
  161     ........Having -C(=X)-, wherein X is chalcogen, bonded directly
                   to the carbocyclic ring
  162     .......Nitrogen attached indirectly to the six-membered hetero
                  ring through the directly attached nitrogen by nonionic
                  bonding
  163     ........Both nitrogens bonded directly to the same acyclic
                   hydrocarbon group
  164     ......Fully saturated quinolines
  165     ......Single bond between 1,2-positions and single bond between
                 3,4-positions
  166     .......The six-membered hetero ring is unsubstituted or alkyl
                  substituted only
  167     ......Unsaturated hetero ring attached directly to the quinoline
                 ring system by nonionic bonding
  168     ......Having -C(=X)-, wherein X is chalcogen, bonded directly to
                 the quinoline ring system
  169     .......Acyclic nitrogen bonded directly to the -C(=X)- group
  170     .......The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                  are the same or diverse chalcogens
  171     ......Nitrogen, other than as nitro or nitroso, attached
                 directly to the carbocyclic ring of the quinoline ring
                 system by nonionic bonding
  172     ......Acyclic sulfur bonded directly to oxygen and directly or
                 indirectly to the quinoline ring system by nonionic
                 bonding
  173     ......Unsaturated carbocyclic ring attached directly to the
                 quinoline ring system by nonionic bonding (e.g.,
                 quinophthalones, etc.)
  174     ......Having -C(=X)-, wherein X is chalcogen, attached
                 indirectly to the quinoline ring system by nonionic
                 bonding
  175     .......Nitrogen bonded directly to the -C(=X)- group
  176     ......Nitrogen, other than as nitro or nitroso, attached
                 indirectly to the quinoline ring system by nonionic
                 bonding
  177     .......Chalcogen attached directly to the carbocyclic ring of
                  the quinoline ring system by nonionic bonding
  178     ......Chalcogen attached directly to the carbocyclic ring of the
                 quinoline ring system by nonionic bonding
  179     .......The chalcogen is in an -OH, -SH, -OM or -SM group (M is
                  Group IA or Group IIA light metal)
  180     ......Halogen or nitro attached directly or indirectly to the
                 quinoline ring system by nonionic bondingg
  181     ......Quinolines which are unsubstituted or which are alkyl or
                 alkenyl substituted only, or salt thereof
  182     .......Addition salts
  183     .....Chalcogen bonded directly to ring carbon of the bicyclo
                ring system
  184     ...Piperidines
  185     ....Process of forming a piperidine ring from a pyridine ring or
               from a partially hydrogenated pyridine ring
  186     ....Plural piperidine rings
  187     .....Additional hetero ring containing
  188     .....Chalcogen attached directly to a ring carbon of a
                piperidine ring by nonionic bonding
  189     .....Having -C(=X)-, wherein X is chalcogen, bonded directly to
                a piperidine ring
  190     .....Having -C(=X)-, wherein X is chalcogen, attached indirectly
                to a piperdine ring by nonionic bonding
  191     .....Carbocyclic ring containing
  192     ....Additional ring containing
  193     .....Pyridine ring or partially hydrogenated pyridine ring
  194     ......Carbocyclic ring containing
  195     .....The additional ring is one of the cyclos in a polycyclo
                ring system
  196     ......Hetero ring in the polycyclo ring system
  197     .......Plural ring hetero atoms in the polycyclo ring system
  198     ........Ring nitrogen in the polycyclo ring system
  199     .........Plural ring nitrogens in the polycyclo ring system
  200     .......Ring nitrogen in the polycyclo ring system
  201     ........Bicyclo ring system which is indole (including
                   hydrogenated)
  202     .......Ring sulfur in the polycyclo ring system
  203     ......The polycyclo ring system is tricyclo-carbocyclic
  204     .......Chalcogen bonded directly to the tricyclo-carbocyclic
                  ring system
  205     ......The polycyclo ring system is bicyclo-carbocyclic
  206     .......Chalcogen bonded directly to the bicyclo-carbocyclic ring
                  system
  207     .....The additional ring is a hetero ring
  208     ......Ring nitrogen in the additional hetero ring
  209     .......Ring sulfur or ring oxygen in the additional hetero ring
  210     .......Plural ring nitrogens in the additional hetero ring
  211     ........1,2-diazole (including hydrogenated)
  212     ......The additional hetero ring consists of one sulfur and four
                 carbons
  213     .......Carbocyclic ring containing
  214     ......The additional hetero ring consists of one oxygen and four
                 carbons
  215     .....Cyano bonded directly to the piperidine ring
  216     .....Chalcogen bonded directly to ring carbon of the piperidine
                ring
  217     ......Chalcogen and a carbocyclic ring bonded directly at
                 4-position
  218     .......The chalcogen, X, is part of a -C(=X)X- group, wherein
                  the X's are the same or diverse chalcogens
  219     ......Plural chalcogens bonded directly to ring carbons of the
                 piperidine ring
  220     .......Having -C(=X)-, wherein X is chalcogen, attached directly
                  or indirectly to the piperidine ring by nonionic bonding
  221     ......Having -C(=X)-, wherein X is chalogen, attached directlyy
                 or indirectly to the piperidine ring by nonionic bonding
  222     .......The -C(=X)- group and the piperidine ring are bonded
                  directly to the same chalcogen
  223     .....Nitrogen attached directly to the piperidine ring by
                nonionic bonding
  224     ......Acyclic nitrogen bonded directly to a -C(=X)- group,
                 wherein X is chalcogen
  225     .....Having -C(=X)-, wherein X is chalcogen, bonded directly to
                the piperidine ring
  226     ......At 1-position
  227     ......The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                 are the same or diverse chalcogens
  228     .......Carbocyclic ring bonded directly at 4-position
  229     .....Nitrogen attached indirectly to the piperidine ring by
                nonionic bonding
  230     ......Cyano attached indirectly to the piperidine ring by
                 nonionic bonding
  231     ......Plural acyclic nitrogens bonded directly to the same
                 carbon or single bonded directly to each other
  232     ......Chalcogen attached indirectly to the piperidine ring by
                 nonionic bonding
  233     .......Acyclic nitrogen bonded directly to a -C(=X)- group,
                  wherein X is chalcogen
  234     ........Plural carbocyclic rings containing
  235     .......The chalcogen, X, is in a -C(=X)- group
  236     .....Chalcogen attached indirectly to the piperidine ring by
                nonionic bonding
  237     ......The chalcogen, X, is in a -C(=X)- group
  238     .......The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                  are the same or diverse chalcogens
  239     ........Plural carbocyclic rings containing
  240     ......The chalcogen is in an -OH or -OM group (M is Group IA or
                 Group IIA light metal)
  241     .......The -OH or -OM is bonded to an acyclic carbon, which
                  carbon is bonded directly to two rings
  242     ....Chalcogen bonded directly to ring carbon of the piperidine
               ring
  243     .....At 2-position
  244     ....Nitrogen attached directly to the piperidine ring by
               nonionic bonding
  245     ....Having -C(=X)-, wherein X is chalcogen, bonded directly to
               the piperidine ring
  246     ....Nitrogen attached indirectly to the piperidine ring by
               nonionic bonding
  247     .....Acyclic nitrogen bonded directly to a -C(=X)- group,
                wherein X is chalcogen
  248     ....Chalcogen attached indirectly to the piperidine ring by
               nonionic bonding
  249     ...Process of forming partially hydrogenated pyridine ring
  250     ...Process of forming pyridine ring
  251     ....The pyridine ring is unsubstituted or hydrocarbyl
               substituted only
  252     .....Starting materials include a nitrogen containing hetero
                ring (e.g., starting materials include a piperidine ring,
                etc.)
  253     .....Starting materials include a hydrocarbon
  254     .....Starting materials include an acyclic hydrocarbyl ether or
                an acyclic hydrocarbyl alcoholl
  255     ...Plural pyridine or partially hydrogenated pyridine rings
  256     ....Additional hetero ring containing
  257     ....Pyridine or partially hydrogenated pyridine rings are bonded
               directly to each other
  258     .....Halogen containing or process utilizing halogen or halogen
                containing compound
  259     ......Metal containing catalyst utilized
  260     .....Metal containing catalyst utilized
  261     ....Chalcogen bonded directly to ring carbon of pyridine or
               partially hydrogenated pyridine ring
  262     ....Having -C(=X)-, wherein X is chalcogen, bonded directly to
               pyridine or partially hydrogenated pyridine ring
  263     .....The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                are the same or diverse chalcogens
  264     ....Acyclic nitrogen attached directly or indirectly to pyridine
               or partially hydrogenated pyridine ring by nonionic bonding
  265     .....Having -C(=X)-, wherein X is chalcogen, bonded directly to
                the acyclic nitrogen
  266     ....Chalcogen attached indirectly to pyridine or partially
               hydrogenated pyridine ring by nonionic bonding
  267     .....The chalcogen, X, is in a -C(=X)- group
  268     ...Additional hetero ring containing
  269     ....The additional hetero ring is one of the cyclos in a
               polycyclo ring system
  270     .....Plural ring hetero atoms in the polycyclo ring system
  271     ......Plural ring nitrogens in the polycyclo ring system
  272     .....Ring nitrogen in the polycyclo ring system
  273     ......Bicyclo ring system which is indole (including
                 hydrogenated)
  274     .....Ring sulfur in the polycyclo ring system
  275     ....Ring nitrogen in the additional hetero ring (e.g., oxazole,
               etc.)
  276     .....Plural ring nitrogens in the additional hetero ring
  277     ......Ring chalcogen in the additional hetero ring
  278     ......The additional hetero ring consists of two nitrogens and
                 three carbons
  279     .......1,2-diazole (including hydrogenated)
  280     .....Ring sulfur in the additional hetero ring
  281     .....The additional hetero ring consists of one nitrogen and
                four carbons
  282     ......Nicotine per se or salt thereof
  283     ....The additional hetero ring is five-membered
  284     .....Ring sulfur in the additional hetero ring
  285     ...Polycyclo-carbocyclic ring system having at least three
              cyclos
  286     ...Cyano bonded directly to the six-membered hetero ring
  287     ....Additional cyano containing
  288     ....Chalcogen bonded directly to ring carbon of the six-membered
               hetero ring
  289     ....Nitrogen attached directly to the six-membered hetero ring
               by nonionic bonding
  290     ...Chalcogen bonded directly to ring carbon of the six-membered
              hetero ring
  291     ....Chalcogen and acyclic nitrogen bonded directly to the same
               carbon
  292     .....The chalcogen or the acyclic nitrogen is bonded directly to
                the six membered hetero ring
  293     ....Sulfur bonded directly to acyclic nitrogenn
  294     ....Chalcogen bonded directly to chalcogen
  295     .....Halogen bonded directly to the six-membered hetero ring by
                nonionic bonding
  296     ....Plural chalcogens bonded directly to ring carbons of the
               six-membered hetero ring
  297     ....Nitrogen attached directly to the six-membered hetero ring
               by nonionic bonding
  298     ....Having -C(=X)-, wherein X is chalcogen, bonded directly to
               the six-membered hetero ring
  299     .....Plural -C(=X)- groups, wherein X is chalcogen, bonded
                directly to the six membered hetero ring
  300     ....Nitrogen attached indirectly to the six-membered hetero ring
               by nonionic bonding
  301     ....Chalcogen attached indirectly to the six-membered hetero
               ring by nonionic bonding
  302     .....Halogen attached directly or indirectly to the six-membered
                hetero ring by nonionic bonding
  303     ....Halogen attached directly or indirectly to the six-membered
               hetero ring by nonionic bonding
  304     ...Nitrogen attached directly to the six-membered hetero ring by
              nonionic bonding
  305     ....Sulfur and acyclic nitrogen bonded directly to the same
               carbon
  306     ....Plural acyclic nitrogens bonded directly to the same carbon
               or single bonded directly to each other
  307     ....Plural nitrogens attached directly to the six-membered
               hetero ring by nonionic bonding
  308     .....Acyclic nitrogen bonded directly to a -C(=X)- group,
                wherein X is chalcogen
  309     ....Acyclic nitrogen bonded directly to a -C(=X)- group, wherein
               X is chalcogen
  310     ....Having -C(=X)-, wherein X is chalcogen, bonded directly to
               the six-membered hetero ring
  311     ....The nitrogen bonded additionally only to hydrogen
  312     ....Chalcogen attached indirectly to the six-membered hetero
               ring by nonionic bonding
  313     ...Thiocarbonyl bonded directly to the six-membered hetero ring
  314     ...Carbonyl bonded directly to the six-membered hetero ring
  315     ....At 3-position
  316     .....Acyclic nitrogen bonded directly to the carbonyl
  317     ......Processes of obtaining nicotinamide per se
  318     .....The carbonyl is in a -COO- group
  319     ......Processes of obtaining nicotinic acid per se or a
                 derivative of nicotinic acid wherein the only substituents
                 are -COO- groups, or salt thereof
  320     .......By oxidation
  321     ......Additional -COO- group bonded directly to the six-membered
                 hetero ring
  322     ......Carbocyclic ring containing
  323     ....Acyclic nitrogen bonded directly to the carbonyl
  324     .....Acyclic nitrogen single bonded directly to acyclic
                nitrogen
  325     ......Carbon double bonded directly to one of the acyclic
                 nitrogens
  326     ....The carbonyl is in a -COO- group
  327     .....Processes
  328     ....Acyclic nitrogen attached indirectly to the six-membered
               hetero ring by nonionic bondingg
  329     ...Nitrogen attached indirectly to the six-membered hetero ring
              by nonionic bonding
  330     ....Cyano attached indirectly to the six-membered hetero ring by
               nonionic bonding
  331     ....Sulfur and acyclic nitrogen bonded directly to the same
               carbon
  332     ....Plural acyclic nitrogens bonded directly to the same carbon
               or single bonded directly to each other
  333     ....The six-membered hetero ring and another ring bonded
               directly to the same carbon
  334     ....Chalcogen attached indirectly to the six-membered hetero
               ring by nonionic bonding
  335     .....The chalcogen, X, is part of a -C(=X)X- group, wherein the
                X's are the same or diverse chalcogens
  336     .....Acyclic nitrogen bonded directly to a -C(=X)- group,
                wherein X is chalcogen
  337     ......Additional ring containing
  338     .....Acyclic nitrogen bonded directly to chalcogen
  339     ...Chalcogen attached indirectly to the six-membered hetero ring
              by nonionic bonding (e.g., sulfato betaines, etc.)
  340     ....The chalcogen, X, is in a -C(=X)- group
  341     .....The -C(=X)- is part of a -C(=X)X- group, wherein the X's
                are the same of diverse chalcogens
  342     ......Additional ring containing
  343     ....The six-membered hetero ring and another ring bonded
               directly to the same carbon
  344     ....The chalcogen is in an -OH or -OM group (M is Group IA or
               Group IIA light metal)
  345     ...Halogen attached directly to the six-membered hetero ring by
              nonionic bonding
  346     ...Halogen attached indirectly to the six-membered hetero ring
              by nonionic bonding
  347     ...The ring nitrogen of the six-membered hetero ring is
              pentavalent (e.g., quaternary pyridinium salts, etc.)
  348     ...Unsubstituted or hydrocarbyl substituted only, or salt
              thereof
  349     ....Alkylation or dealkylation process
  350     ....Unsaturated hydrocarbyl side chain
  351     .....Stabilized alkenyl pyridines
  352     .....Process of forming the unsaturated hydrocarbyl side chain
  353     ....Purification or recovery