Cyclopentanohydrophenanthrene Ring System Containing Patents (Class 552/502)
- The additional ring shares the 1,2-positions of the cyclopentanohydrophenanthrene ring system (Class 552/511)
- The additional ring shares the 5,10- or 5,19-positions of the cyclopentanohydrophenanthrene ring system (Class 552/512)
- The additional ring shares the 6,7-positions of the cyclopentanohydrophenanthrene ring system (Class 552/513)
- The additional ring shares the 16,17-positions of the cyclopentanohydrophenanthrene ring system (Class 552/514)
- Oxygen bonded directly at the 1-, 2-, or 4-position (Class 552/541)
- Oxygen bonded directly at the 6- or 7-position (Class 552/542)
- Carbon or halogen bonded directly at the 6- or 7-position (Class 552/543)
- Exactly one oxygen bonded directly to the cyclopentanohydrophenanthrene ring system (e.g., cholesterols, cholestanols, stigmasterols, etc.) (Class 552/544)
- Oxygen bonded directly at the 12-position (e.g., cholic acids, desoxycholic acids, dehydrocholic acids, etc.) (Class 552/549)
- Oxygen bonded directly at the 6- or 7-position (e.g., chenodeoxycholic acids, ursodeoxycholic acids, etc.) (Class 552/551)
- Exactly one oxygen bonded directly to the cyclopentanohydrophenanthrene ring system (e.g., 3-hydroxycholanic acids, lithocholic acids, etc.) (Class 552/552)
- The A ring is a benzene ring (Class 552/558)
- Three or more oxygens bonded directly to the cyclopentanohydrophenanthrene ring system (Class 552/559)
- Two oxygens bonded directly to the cyclopentanohydrophenanthrene ring system (Class 552/582)
- Exactly one oxygen bonded directly to the cyclopentanohydrophenanthrene ring system (Class 552/599)
- Oxygen bonded directly at the 1-position (Class 552/613)
- Oxygen bonded directly at the 2- or 4-position (Class 552/614)
- Oxygen bonded directly at the 5-, 6- or 7-position (Class 552/615)
- Oxygen bonded directly at the 16-position (Class 552/616)
- The A ring is a benzene ring (Class 552/618)
- Oxygen bonded directly at the 3-, 11- and 17-positions (e.g., 1-androstene 3,11,17-triones, etc.) (Class 552/619)
- Oxygen bonded directly at the 16-position (Class 552/624)
- The A ring is a benzene ring (e.g., estrones, estradiols, etc.) (Class 552/625)
- 19-position substituted (e.g., 19-methylene-androstanes, 10-cyanoestranes, etc.) (Class 552/632)
- Carbon bonded directly at the 10- and 13-positions (e.g., androstenes, etc.) (Class 552/633)
- Carbon bonded directly at the 13-position (e.g., 19-norandrostenes, estradienes, etc.) (Class 552/642)