Steroidic 5-reductase inhibitors
Patent 4732897 Issued on March 22, 1988. Estimated Expiration Date: 
February 3, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 3, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPreparation of 4-aza-17-substituted-5-androstan-3-ones useful as 5-reductase inhibitors 4-Aza-17ଲ-substituted-5-androstan-3-one-reductase inhibitors Bile acids Patent #: 4388241 Inventors
ApplicationNo. 06/825348 filed on 02/03/1986US Classes:514/228.2, Polycyclo ring system having the additional hetero ring as one of the cyclos514/232.8, Polycyclo ring system having the additional hetero ring as one of the cyclos514/253.02, Polycyclo ring system having the additional six-membered nitrogen hetero ring as one of the cyclos514/284, Tetracyclo ring system having the six-membered hetero ring as one of the cyclos544/125, The additional six-membered hetero ring is one of the cyclos in a polycyclo ring system544/361, The additional six-membered hetero ring is one of the cyclos in a polycyclo ring system544/60, Additional hetero ring containing546/77, The six-membered hetero ring shares ring members with one other cyclo only546/78, Plural chalcogens bonded directly to carbocyclic rings of the tetracyclo ring system (e.g., pyridoanthraquinones, etc.)552/552, Exactly one oxygen bonded directly to the cyclopentanohydrophenanthrene ring system (e.g., 3-hydroxycholanic acids, lithocholic acids, etc.)560/5, Hydrophenanthrene in acid moiety562/403Hydrophenanthrene nucleusExaminersPrimary: Daus, Donald G.Assistant: Rivers, Diana G. Attorney, Agent or FirmInternational ClassesC07J 73/00 (20060101)C07J 41/00 (20060101) Foreign Application Priority Data1985-03-07 GBAbstractThe present invention relates to new 4-aza-17ଲ-substituted 5-androstan-3-ones, to a process for their preparation, to pharmacological compostions containing them, and to the use of said compounds as inhibitors of androgen action by means of testosterone 5-reductase inhibition.Other References
|
| ||||||||||||||
