Two Oxygens Bonded Directly To The Cyclopentanohydrophenanthrene Ring System Patents (Class 552/623)
- Nitrogen or sulfur containing (Class 552/626)
- Carbon or halogen bonded directly at the 1-, 2- or 4-position (Class 552/627)
- Carbon or halogen bonded directly at the 6- or 7-position (Class 552/628)
- Carbon bonded directly at the 11-, 15- or 16-position (Class 552/629)
- 17 alpha-position substituted (Class 552/630)
- Carbon or halogen bonded directly at the 1- or 3-position (Class 552/634)
- Carbon or halogen bonded directly at the 2- or 4-position (Class 552/635)
- Unsaturation between the 5- and 6-positions (e.g., dehydroandrosterones, etc.) (Class 552/636)
- Unsaturation between the 4- and 5-positions (e.g., testosterones, etc.) (Class 552/638)
- The cyclopentanohydrophenanthrene ring system is fully saturated (e.g., androstandiols, androsterones, dihydrotestosterones, etc.) (Class 552/641)
- Carbon or halogen bonded directly at the 1-, 2-, 4- or 5-position (Class 552/643)
- Unsaturation between the 5- and 10-positions (Class 552/644)
- Unsaturation between the 4- and 5-positions (e.g., 19-nortestosterones, 13 beta-alkyl-4-gonene-3,17-diones etc.) (Class 552/646)
- The cyclopentanohydrophenanthrene ring system is fully saturated (e.g., 17 alpha-alkyl-17 beta-hydroxyestran-3-ones, etc.) (Class 552/649)