Tricyclo Ring System Having The Five-membered Hetero Ring As One Of The Cyclos Patents (Class 548/427)
- The five-membered hetero ring shares ring carbons with two benzene rings (i.e., carbazoles) (Class 548/440)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to the tricyclo ring system (e.g., carbazole-3-carboxylic acid, etc.) (Class 548/441)
- One of the benzene rings and an additional carbocyclic ring bonded directly to the same acyclic nitrogen (Class 548/442)
- Azido or sulfonyl attached directly to the tricyclo ring system by nonionic bonding (e.g., carbazole sulfonic acid, etc.) (Class 548/443)
- Chalcogen or nitrogen attached indirectly to the tricyclo ring system by acyclic nonionic bonding (Class 548/444)
- The tricyclo ring system is unsubstituted or is hydrocarbyl substituted only (e.g., N-vinyl carbazole, etc.) (Class 548/445)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the tricyclo ring system (e.g., 1, 2, 3, 4-tetrahydrocarbazole -3 carboxylic acid, etc.) (Class 548/448)
- Chalcogen or nitrogen attached indirectly to ring nitrogen of the five membered hetero ring by acyclic nonionic bonding (Class 548/449)