17ଲ-N-monosubstituted carbamoyl-4-aza-5-androst-1-en-3-ones which are active as testosterone 5-reductase inhibitors
Patent 4760071 Issued on July 26, 1988. Estimated Expiration Date: 
November 21, 2005. 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.
November 21, 2005. 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 References 2227876 3239417 3264301 3285918 Preparation of 4-aza-17-substituted-5-androstan-3-ones useful as 5-reductase inhibitors 4-Aza-17ଲ-substituted-5-androstan-3-one-reductase inhibitors Patent #: 4377584 InventorsAssigneeApplicationNo. 06/800623 filed on 11/21/1985US Classes:514/284, Tetracyclo ring system having the six-membered hetero ring as one of the cyclos514/859, Acne546/77The six-membered hetero ring shares ring members with one other cyclo onlyExaminersPrimary: Daus, Donald G.Assistant: Rivers, Diana G. Attorney, Agent or FirmInternational ClassesC07J 73/00 (20060101)C07C 62/00 (20060101) C07C 62/38 (20060101) AbstractThis invention is for the compound 17ଲ-(N-t-butylcarbamoyl)-4-aza-5-androst-1-en-3-one, pharmaceutical compositions containing the compound, methods of inhibiting testosterone 5-reductase with the compound and methods of treating hyperandrogenic conditions with the compound, particularly benign prostatic hypertrophy.Other References
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