Organic compounds (class 532, subclass 1)

Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1)

Hetero ring is six-membered consisting of one nitrogen and five carbons

Additional hetero ring containing

Ring oxygen in the additional hetero ring

The additional hetero ring is five-membered

Chalcogen attached directly to the additional hetero ring by nonionic bonding

Nitrogen or -c(=x)-, wherein x is chalcogen, attached directly to the additional hetero ring by nonionic bonding

Plural ring oxygens in the additional hetero ring

Polycyclo ring system having the additional hetero ring as one of the cyclos

The additional hetero ring is six-membered

Plural ring oxygens in the additional hetero ring

Polycyclo ring system having the additional hetero ring as one of the cyclos

Chalcogen attached directly to the additional hetero ring by nonionic bonding

Ring sulfur in the additional hetero ring

The additional hetero ring is five-membered

Nitrigen attached directly to the six-membered hetero ring or to the additional hetero ring by nonionic bonding

Plural ring sulfurs in the additional hetero ring

Polycyclo ring system having the additional hetero ring as one of the cyclos

The additional hetero ring is six-membered

The additional hetero ring is five-membered consisting of one nitrogen and four carbons

Chalcogen attached directly to the five-membered hetero ring by nonionic bonding

Plural chalcogens attached directly to the five-membered hetero ring by nonionic bonding

Nicotine, per se, or its salts

Nitrogen or -c(=x)-, wherein x is chalcogen, attached directly to the five- membered ring by nonionic bonding

Polycyclo ring system having the five-membered hetero ring as one of the cyclos

Bicyclo ring system which is indole (including hydrogenated)

Chalcogen attached directly to the five-membered hetero ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, bonded directly to the five- membered hetero ring

Bicyclo ring system which is isoindole (including hydrogenated)

The additional hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen

1,2,4-triazoles (including hydrogenated)

1,2-diazoles (including hydrogenated)

Chalcogen attached directly to the 1,2-diazole ring by nonionic bonding

Polycyclo ring system having the 1,2-diazole ring as one of the cyclos

1,2-oxazoles (including hydrogenated)

1,2-thiazoles (including hydrogenated)

1,3-diazoles (including hydrogenated)

Chalcogen attached directly to the 1,3-diazole ring by nonionic bonding

Chalcogen attached indirectly to the 1,3-diazole ring by acyclic nonionic bonding

Nitrogen or -c(=x)-, wherein x is chalcogen, attached directly to the 1,3-diazole diazole ring by nonionic bonding

Polycyclo ring system having the 1,3-diazole ring as one of the cyclos

Bicyclo ring system which is benzimidazole (including hydrogenated)

Chalcogen bonded directly to a ring carbon of the 1,3-diazole ring

The 1,3-diazole ring is bonded directly to the six-membered hetero ring

1,3-oxazoles (including hydrogenated)

Polycyclo ring system having the 1,3-oxazole ring as one of the cyclos

1,3-thiazoles (including hydrogenated)

1,3-thiazole ring bonded directly to the six-membered hetero ring

Nitrogen attached directly to the 1,3-thiazole ring by nonionic bonding

Polycyclo ring system having the 1,3-thiazole ring as one of the cyclos

Oxadiazoles (including hydrogenated)

Oxadiazole ring bonded directly to the six-membered hetero ring

Thiadiazoles (including hydrogenated)

Boron containing

Carbonyl bonded directly to the six-membered hetero ring

Acyclic nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding

Acyclic nitrogen bonded directly to the carbonyl

Acyclic nitrogen single bonded directly to acyclic nitrogen

Carbon double bonded directly to one of the acyclic nitrogens

At 3-position

Acyclic nitrogen bonded directly to the carbonyl

Processes of obtaining nicotinamide per se

The carbonyl is in a -coo- group

Additional -coo- group bonded directly to the six-membered hetero ring

Carbocyclic ring containing

Processes of obtaining nicotinic acid per se or a derivative of nicotinic acid wherein the only substituents are -coo- groups, or salt thereof

By oxidation

The carbonyl is in a -coo- group

Processes

Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding (e.g., sulfato betaines, etc.)

The chalcogen is in an -oh or -om group (m is group ia or group iia light metal)

The chalcogen, x, is in a -c(=x)- group

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same of diverse chalcogens

Additional ring containing

The six-membered hetero ring and another ring bonded directly to the same carbon

Chalcogen bonded directly to ring carbon of the six-membered hetero ring

Chalcogen and acyclic nitrogen bonded directly to the same carbon

The chalcogen or the acyclic nitrogen is bonded directly to the six membered hetero ring

Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding

Halogen attached directly or indirectly to the six-membered hetero ring by nonionic bonding

Chalcogen bonded directly to chalcogen

Halogen bonded directly to the six-membered hetero ring by nonionic bonding

Halogen attached directly or indirectly to the six-membered hetero ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, bonded directly to the six-membered hetero ring

Plural -c(=x)- groups, wherein x is chalcogen, bonded directly to the six membered hetero ring

Nitrogen attached directly to the six-membered hetero ring by nonionic bonding

Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding

Plural chalcogens bonded directly to ring carbons of the six-membered hetero ring

Sulfur bonded directly to acyclic nitrogen

Cyano bonded directly to the six-membered hetero ring

Additional cyano containing

Chalcogen bonded directly to ring carbon of the six-membered hetero ring

Nitrogen attached directly to the six-membered hetero ring by nonionic bonding

Halogen attached directly to the six-membered hetero ring by nonionic bonding

Halogen attached indirectly to the six-membered hetero ring by nonionic bonding

Heavy metal or aluminum containing

Arsenic containing

Azide or acyclic nitrogen containing

Piperidine containing

Polycyclo ring system having the six-membered hetero ring as one of the cyclos

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

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

The metal is bonded directly to chalcogen which chalcogen is attached directly or indirectly to the six-membered hetero ring by nonionic bonding

The chalcogen is bonded directly to ring carbon of a quinoline ring system (including hydrogenated)

The metal is in an anion and the six-membered hetero ring is in a cation

The metal is bonded directly to halogen in the anion

Nitrogen attached directly to the six-membered hetero ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, bonded directly to the six-membered hetero ring

Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other

Plural nitrogens attached directly to the six-membered hetero ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Sulfur and acyclic nitrogen bonded directly to the same carbon

The nitrogen bonded additionally only to hydrogen

Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding

Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Additional ring containing

Acyclic nitrogen bonded directly to chalcogen

The chalcogen, x, is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Cyano attached indirectly to the six-membered hetero ring by nonionic bonding

Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other

Sulfur and acyclic nitrogen bonded directly to the same carbon

The six-membered hetero ring and another ring bonded directly to the same carbon

Phosphorus attached directly to the six-membered hetero ring by nonionic bonding

Phosphorus attached indirectly to the six-membered hetero ring by nonionic bonding

Chalcogen bonded directly to ring carbon of the six-membered hetero ring

The phosphorus is bonded directly to the chalcogen

Polycyclo ring system having the six-membered hetero ring as one of the cyclos

Piperidines

Additional ring containing

Chalcogen attached indirectly to the piperidine ring by nonionic bonding

The chalcogen is in an -oh or -om group (m is group ia or group iia light metal)

The -oh or -om is bonded to an acyclic carbon, which carbon is bonded directly to two rings

The chalcogen, x, is in a -c(=x)- group

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Plural carbocyclic rings containing

Chalcogen bonded directly to ring carbon of the piperidine ring

Chalcogen and a carbocyclic ring bonded directly at 4-position

The chalcogen, x, is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Having -c(=x)-, wherein x is chalogen, attached directly or indirectly to the piperidine ring by nonionic bonding

The -c(=x)- group and the piperidine ring are bonded directly to the same chalcogen

Plural chalcogens bonded directly to ring carbons of the piperidine ring

Having -c(=x)-, wherein x is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding

Cyano bonded directly to the piperidine ring

Having -c(=x)-, wherein x is chalcogen, bonded directly to the piperidine ring

At 1-position

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Carbocyclic ring bonded directly at 4-position

Nitrogen attached directly to the piperidine ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Nitrogen attached indirectly to the piperidine ring by nonionic bonding

Chalcogen attached indirectly to the piperidine ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Plural carbocyclic rings containing

The chalcogen, x, is in a -c(=x)- group

Cyano attached indirectly to the piperidine ring by nonionic bonding

Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other

Pyridine ring or partially hydrogenated pyridine ring

Carbocyclic ring containing

The additional ring is a hetero ring

Ring nitrogen in the additional hetero ring

Plural ring nitrogens in the additional hetero ring

1,2-diazole (including hydrogenated)

Ring sulfur or ring oxygen in the additional hetero ring

The additional hetero ring consists of one oxygen and four carbons

The additional hetero ring consists of one sulfur and four carbons

Carbocyclic ring containing

The additional ring is one of the cyclos in a polycyclo ring system

Hetero ring in the polycyclo ring system

Plural ring hetero atoms in the polycyclo ring system

Ring nitrogen in the polycyclo ring system

Plural ring nitrogens in the polycyclo ring system

Ring nitrogen in the polycyclo ring system

Bicyclo ring system which is indole (including hydrogenated)

Ring sulfur in the polycyclo ring system

The polycyclo ring system is bicyclo-carbocyclic

Chalcogen bonded directly to the bicyclo-carbocyclic ring system

The polycyclo ring system is tricyclo-carbocyclic

Chalcogen bonded directly to the tricyclo-carbocyclic ring system

Chalcogen attached indirectly to the piperidine ring by nonionic bonding

Chalcogen bonded directly to ring carbon of the piperidine ring

At 2-position

Having -c(=x)-, wherein x is chalcogen, bonded directly to the piperidine ring

Nitrogen attached directly to the piperidine ring by nonionic bonding

Nitrogen attached indirectly to the piperidine ring by nonionic bonding

Acyclic nitrogen bonded directly to a -c(=x)- group, wherein x is chalcogen

Plural piperidine rings

Additional hetero ring containing

Carbocyclic ring containing

Chalcogen attached directly to a ring carbon of a piperidine ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, attached indirectly to a piperdine ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, bonded directly to a piperidine ring

Process of forming a piperidine ring from a pyridine ring or from a partially hydrogenated pyridine ring

Plural pyridine or partially hydrogenated pyridine rings

Acyclic nitrogen attached directly or indirectly to pyridine or partially hydrogenated pyridine ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, bonded directly to the acyclic nitrogen

Additional hetero ring containing

Chalcogen attached indirectly to pyridine or partially hydrogenated pyridine ring by nonionic bonding

The chalcogen, x, is in a -c(=x)- group

Chalcogen bonded directly to ring carbon of pyridine or partially hydrogenated pyridine ring

Having -c(=x)-, wherein x is chalcogen, bonded directly to pyridine or partially hydrogenated pyridine ring

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Pyridine or partially hydrogenated pyridine rings are bonded directly to each other

Halogen containing or process utilizing halogen or halogen containing compound

Metal containing catalyst utilized

Metal containing catalyst utilized

Polycyclo ring system having the six-membered hetero ring as one of the cyclos

Bicyclo ring system having the six-membered hetero ring as one of the cyclos

Chalcogen bonded directly to ring carbon of the bicyclo ring system

Isoquinolines (including hydrogenated)

Acyclic nitrogen double or triple bonded to carbon which is attached directly or indirectly to the isoquinoline ring system by nonionic bonding

Chalcogen attached directly to the six-membered hetero ring by nonionic bonding

Plural chalcogens attached directly to the six-membered hetero ring by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, attached directly or indirectly to the isoquinoline ring system by nonionic bonding

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

N-alkyl or n-alkenyl isoquinoliniums which are otherwise unsubstituted or alkyl or alkenyl substituted only

Nitrogen, other than as nitro or nitroso, attached directly to the isoquinoline ring system by nonionic bonding

Plural isoquinoline ring systems attached directly or indirectly to each other by nonionic bonding

Single bond between 3,4-positions

Unsaturated carbocyclic ring attached indirectly to the six-membered hetero ring through an acyclic hydrocarbon chain

Unsaturated hetero ring attached indirectly to the isoquinoline ring system by nonionic bonding

Unsaturated ring attached directly to the six-membered hetero ring by nonionic bonding

Plural ring hetero atoms in the bicyclo ring system

At least four ring nitrogens in the bicyclo ring system

Ring nitrogen is shared by the two cyclos

Ring oxygen in the bicyclo ring system

Acyclic chalcogen bonded directly to ring carbon of the bicyclo ring system

Ring sulfur in the bicyclo ring system

The other cyclo in the bicyclo ring system is also six-membered (e.g., naphthyridines, etc.)

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.)

Three ring nitrogens in the bicyclo ring system

Two of the ring nitrogens are bonded directly to each other

Having -c(=x)-, wherein x is chalcogen, bonded directly to the bicyclo ring system

Quinolines (including hydrogenated)

Acyclic sulfur bonded directly to oxygen and directly or indirectly to the quinoline ring system by nonionic bonding

Chalcogen attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding

The chalcogen is in an -oh, -sh, -om or -sm group (m is group ia or group iia light metal)

Chalcogen attached directly to the six-membered hetero ring by nonionic bonding

Chalcogen attached directly at 2-position by nonionic bonding

Single bond between 3,4-positions

Having -c(=x)-, wherein x is chalcogen, bonded directly to the six-membered hetero ring

Plural chalcogens attached directly to the six-membered hetero ring by nonionic bonding

Polycyclo-carbocyclic ring system bonded directly to the six-membered hetero ring (e.g., quinophthalones, etc.)

Fully saturated quinolines

Halogen or nitro attached directly or indirectly to the quinoline ring system by nonionic bonding

Having -c(=x)-, wherein x is chalcogen, attached indirectly to the quinoline ring system by nonionic bonding

Nitrogen bonded directly to the -c(=x)- group

Having -c(=x)-, wherein x is chalcogen, bonded directly to the quinoline ring system

Acyclic nitrogen bonded directly to the -c(=x)- group

The -c(=x)- is part of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens

Nitrogen, other than as nitro or nitroso, attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding

Nitrogen, other than as nitro or nitroso, attached directly to the six membered hetero ring by nonionic bonding

Nitrogen attached indirectly to the six-membered hetero ring through the directly attached nitrogen by nonionic bonding

Both nitrogens bonded directly to the same acyclic hydrocarbon group

Unsaturated carbocyclic ring bonded directly to the nitrogen

Having -c(=x)-, wherein x is chalcogen, bonded directly to the carbocyclic ring

Nitrogen, other than as nitro or nitroso, attached indirectly to the quinoline ring system by nonionic bonding

Chalcogen attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding

Quinolines which are unsubstituted or which are alkyl or alkenyl substituted only, or salt thereof

Addition salts

Single bond between 1,2-positions and single bond between 3,4-positions

The six-membered hetero ring is unsubstituted or alkyl substituted only

Unsaturated carbocyclic ring attached directly to the quinoline ring system by nonionic bonding (e.g., quinophthalones, etc.)

Unsaturated hetero ring attached directly to the quinoline ring system by nonionic bonding

Quinolizines (including hydrogenated)

Quinuclidines (including unsaturated)

Chalcogen bonded directly to ring carbon of the quinuclidine ring system

Quinoline containing (including hydrogenated)

Additional hetero ring containing

Three or more chalcogens attached indirectly to the quinuclidine ring system by nonionic bonding

Tropanes (including nor and dehydro forms)

Additional hetero ring containing

Additional polycyclo ring system having the additional hetero ring as one of the cyclos

Chalcogen bonded directly to ring carbon of the tropane ring system

Additional chalcogen attached directly or indirectly to the tropane ring system by nonionic bonding

Three or more oxygens attached directly or indirectly to the tropane ring system by nonionic bonding

Hydroxy containing or containing oxy bonded directly to a group ia or group iia light metal (i.e., -oh or -om containing)

Polycyclo-carbocyclic ring system

Having -c(=x)-, wherein x is chalcogen, bonded directly to the tropane ring system

Heptacyclo ring system having the six-membered hetero ring as one of the cyclos

Plural ring hetero atoms in the heptacyclo ring system

Ring carbon is shared by three of the cyclos (e.g., perylene tetracarboxylic acid diimide, etc.)

Two of the cyclos share at least three ring members (e.g., protoveratrine, etc.)

At least three ring hetero atoms in the heptacyclo ring system

Hexacyclo ring system having the six-membered hetero ring as one of the cyclos

Plural ring hetero atoms in the hexacyclo ring system

Two of the cyclos share at least three ring members (e.g., etheno morphides, etc.)

Plural ring nitrogens in the hexacyclo ring system (e.g., reserpic acid lactone, etc.)

Nonacyclo ring system having the six-membered hetero ring as one of the cyclos

The six-membered hetero ring shares ring nitrogen with a five-membered cyclo which contains additional ring nitrogen

Octacyclo ring system having the six-membered hetero ring as one of the cyclos

Plural ring hetero atoms in the octacyclo ring system (e.g., flavanthrone, cepharanthrine, etc.)

At least four ring nitrogens in the octacyclo ring system (e.g., naphthoylene dibenzimidazole, etc.)

Pentacyclo ring system having the six-membered hetero ring as one of the cyclos

Plural ring hetero atoms in the pentacyclo ring system

Three or more ring hetero atoms in the pentacyclo ring system

Two ring nitrogens in the pentacyclo ring system (e.g., quinacridones, etc.)

Ring nitrogen is shared by two of the cyclos (e.g., yohimbanes, etc.)

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

Plural chalcogens bonded directly to the same cyclo as is the -(c=x)- group

Trialkoxybenzoyl bonded directly to at least one of the chalcogens (e.g., reserpine, etc.)

Ring nitrogen is shared by five-membered cyclo and six-membered cyclo (e.g., vincamine, etc.)

Additional ring nitrogen in the five-membered cyclo

Three or more ring carbons of the pentacyclo ring system are substituted (e.g., substituted quinacridones, etc.)

Three or more chalcogens containing

The pentacyclo ring system consists of five six-membered cyclos (e.g., anthraquinonebenzacridones, etc.)

Nitrogen attached directly to the pentacyclo ring system by nonionic bonding

An additional ring is bonded directly to the nitrogen

Two of the cyclos share at least three ring members (i.e., bridged)

One of the five cyclos is five-membered and includes ring chalcogen (e.g., codeine, morphine, etc.)

A single chalcogen is bonded directly to ring carbon of the pentacyclo ring system (e.g., desoxy morphine, etc.)

Nitrogen or divalent chalcogen double bonded directly to carbocyclic ring of the pentacyclo ring system (e.g., morphinones, etc.)

Tetracyclo ring system having the six-membered hetero ring as one of the cyclos

Plural ring hetero atoms in the tetracyclo ring system (e.g., acronycines, etc.)

Ring carbon is shared by three of the cyclos

The three cyclos consist of two carbocyclic rings and a five-membered hetero ring which includes a ring nitrogen (e.g., ergolines, etc.)

Chalcogen or nitrogen bonded directly to ring carbon of the six-membered hetero ring

Having -c(=x)-, wherein x is chalcogen, bonded directly to the six-membered hetero ring (e.g., lysergic acid, etc.)

Three or more ring hetero atoms in the tetracyclo ring system

Plural ring chalcogens in the tetracyclo ring system

Two of the cyclos share at least three ring member (i.e., bridged)

Two ring nitrogens in the tetracyclo ring system

Ring carbon is shared by three of the cyclos

Chalcogen bonded directly to ring carbon of the six-membered hetero ring (e.g., anthrapyridones, etc.)

Ring nitrogen is shared by two of the cyclos

The six-membered hetero ring shares ring members with one other cyclo only (e.g., pyrrocolines, etc.)

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)

The six-membered hetero ring shares ring members with one other cyclo only

Plural chalcogens bonded directly to carbocyclic rings of the tetracyclo ring system (e.g., pyridoanthraquinones, etc.)

Two of the cyclos share at least three ring members (e.g., morphinans, etc.)

The polycyclo ring system has at least ten cyclos and at least four ring nitrogens

Tricyclo ring system having the six-membered hetero ring as one of the cyclos

Each of the three cyclos is six-membered (e.g., benzoquinolines, etc.)

Acridines (including hydrogenated)

Chalcogen bonded directly to ring carbon of the six-membered hetero ring

Nitrogen, other than as nitro or nitroso, attached directly or indirectly to the acridine ring system by nonionic bonding

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.)

The nitrogen is bonded directly to ring carbon of the six-membered hetero ring

The nitrogen is part of a substituent which contains additional nonionically bonded nitrogen

Chalcogen or -c(=x)-, wherein x is chalcogen, attached directly to the six membered hetero ring by nonionic bonding

Phenanthridines (including hydrogenated)

Unsaturated ring bonded directly to ring carbon of the six-membered hetero ring

One of the cyclos has at least seven members

Plural ring hetero atoms in the tricyclo ring system

Plural ring nitrogens in the tricyclo ring system

One of the cyclos is five-membered

The six-membered hetero ring shares ring members with the five-membered cyclo only (e.g., pyrido-indoles, etc.)

Chalcogen bonded directly to ring carbon of the tricyclo ring system

Nitrogen attached directly or indirectly to the tricyclo ring system by nonionic bonding

Phenanthrolines (including hydrogenated)

Three or more ring hetero atoms in the tricyclo ring system

At least one of the ring hetero atoms is chalcogen

Ring oxygen in the tricyclo ring system

Plural chalcogens bonded directly to ring carbons of the tricyclo ring system

Plural ring oxygens in the tricyclo ring system

Tropane and oxirane in the tricyclo ring system

Ring carbon is shared by each of the three cyclos (e.g., 1,8 naphthalimides, etc.)

Nitrogen, other than as nitro or nitroso, attached directly or indirectly to the tricyclo ring system by nonionic bonding

The nitrogen is bonded directly to a carbocyclic ring of the tricyclo ring system

Ring nitrogen is shared by two of the cyclos

Benzo(a)quinolizines (including hydrogenated)

Additional polycyclo ring system having ring nitrogen (e.g., emetine, etc.)

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.)

Two of the cyclos share at least three ring carbons (e.g., benzomorphans, etc.)

Polycyclo-carbocyclic ring system having at least three cyclos

Process of forming partially hydrogenated pyridine ring

Process of forming pyridine ring

The pyridine ring is unsubstituted or hydrocarbyl substituted only

Starting materials include a hydrocarbon

Starting materials include a nitrogen containing hetero ring (e.g., starting materials include a piperidine ring, etc.)

Starting materials include an acyclic hydrocarbyl ether or an acyclic hydrocarbyl alcohol

Silicon containing

Spiro

The spiro includes the six-membered hetero ring

At least three ring hetero atoms in the two rings which form the spiro

At least three ring nitrogens in the two rings which form the spiro

Polycyclo ring system having one of the two rings which form the spiro as one of the cyclos

Polycyclo ring system having the six-membered hetero ring as one of the cyclos

The ring nitrogen of the six-membered hetero ring is pentavalent (e.g., quaternary pyridinium salts, etc.)

Thiocarbonyl bonded directly to the six-membered hetero ring

Unsubstituted or hydrocarbyl substituted only, or salt thereof

Alkylation or dealkylation process

Purification or recovery

Unsaturated hydrocarbyl side chain

Process of forming the unsaturated hydrocarbyl side chain

Stabilized alkenyl pyridines