The Ring Nitrogen Is Shared By A Five-membered Ring Patents (Class 540/302)
- 1-thia-4-aza-bicyclo(3.2.0)hep-tane (including unsaturated; e.g., penam, etc.) (Class 540/304)
- The 1-thia-4-aza-bicyclo(3.2.0)hep-tane is part of a polycyclo ring system having at least three cyclos (Class 540/305)
- Plural 1-thia-4-aza-bicyclo(3.2.0)hep-tane ring systems attached directly or indirectly to each other by nonionic bonding (Class 540/306)
- Spiro (Class 540/307)
- The 6-position substituent contains phosphorus attached directly or indirectly to the bicyclo ring system by nonionic bonding (Class 540/308)
- Nitrogen containing hetero ring attached directly at the 3-position of the bicyclo ring system (Class 540/309)
- Having -C(=X)-, wherein X is chalcogen, bonded directly at the 3-position of the bicyclo ring system (Class 540/310)
- Nitrogen or hydrogen bonded directly to the -C(=X)- group (Class 540/311)
- Nitrogen bonded directly at the 6-position of the bicyclo ring system (Class 540/312)
- The 2-position substituent contains chalcogen, nitrogen or halogen (Class 540/313)
- Having -C(=X)-, wherein X is chalcogen, single bonded directly to the nitrogen (e.g., penicillin F, etc.) (Class 540/314)
- Processes utilizing penam containing compound (Class 540/315)
- Introduction of -C(=X)- group, wherein X is chalcogen, onto nitrogen (e.g., carboxamide formation, etc.) (Class 540/316)
- Esterification of the 3-position -C(=X)X- group, wherein the X's may be the same or diverse chalcogens (Class 540/318)
- Sulfur-oxidation, epimerization, 6-alkoxylation, de-esterification or reduction (Class 540/319)
- Formation of solvate or anhydrous forms, or special crystalline forms (Class 540/320)
- Conversion of amine salts to metal salts (Class 540/321)
- Purification utilizing solid adsorbent (Class 540/322)
- Base salt formation of 3-position -COOH group (Class 540/323)
- Extracting solid from solution (Class 540/324)
- The nitrogen is part of a hetero ring (Class 540/325)
- Chalcogen, -C(=X)-, wherein X is chalcogen, or additional nitrogen bonded directly to the -C(=X)- group (Class 540/326)
- Hetero ring or ring system bonded directly to the -C(=X)- group (Class 540/327)
- Nitrogen containing ring or ring system attached by carbon or acyclic carbon chain to the -C(=X)- group (Class 540/328)
- Polycyclo heterocyclic ring system in 6-position substituent (Class 540/329)
- Acyclic nitrogen or azide attached indirectly to the -C(=X)- group by acyclic nonionic bonding (Class 540/331)
- Having -C(=X)-, wherein X is chalcogen, bonded directly to the nitrogen (Class 540/332)
- Additional acyclic nitrogen or acyclic chalcogen in the 6-position substituent (Class 540/335)
- The -C(=X)- group, an unsubstituted benzene ring and -NHH bonded directly to the same carbon atom (e.g., ampicillin, etc.) (Class 540/336)
- Cycloaliphatic ring in 6-position substituent (Class 540/337)
- Benzene or hetero ring in 6-position substituent (Class 540/338)
- The ring is bonded directly to the -C(=X)- group (Class 540/339)
- Having -C(=X)X-, wherein the X's may be the same or diverse chalcogens, in chain between the ring and the -C(=X)- group (Class 540/340)
- Chalcogen in the chain between the ring and the -C(=X)- group (Class 540/341)
- Unsubstituted hydrocarbyl chain between the ring and the -C(=X)- group (Class 540/342)
- Processes (Class 540/346)
- Bicyclo ring system which is 1-oxa-4-aza-bicyclo(3.2.0)hep-tane (including unsaturated) (Class 540/347)
