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Generated: July 24, 2017

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Summary for Patent: ► Subscribe

Title: 4-Aza-17.beta.-substituted-5.alpha.-androstan-3-one-reductase inhibitors
Abstract:4-Aza-17.beta.-substituted-5.alpha.-androstan-3-ones and their A-homo analogs of the formula: ##STR1## where Formula (I) may also have the structure of partial Formulas (II) and/or (III); and pharmaceutically acceptable salts of the above compounds are active as testosterone 5.alpha.-reductase inhibitors, and thus useful topically for treatment of acne, seborrhea, female hirsutism, and systemically in treatment of benign prostatic hypertrophy.
Inventor(s): Rasmusson; Gary H. (Watchung, NJ), Johnston; David B. R. (Warren, NJ), Arth, deceased; Glen E. (late of Cranford, NJ)
Assignee: Merck & Co., Inc. (Rahway, NJ)
Application Number:06/189,981
Patent Claim Types:
see list of patent claims
Compound; Use; Dosage form; Composition;

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Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Finland67389► Subscribe
Finland791193► Subscribe
Australia527030► Subscribe
Australia4569779► Subscribe
Bulgaria61244► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving 500+ biopharmaceutical companies globally:

Boehringer Ingelheim
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Mallinckrodt
Accenture
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Healthtrust
Covington
Baxter
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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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