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Last Updated: December 12, 2019

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Details for Patent: 4,659,516

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Summary for Patent: 4,659,516
Title: Steroid derivatives
Abstract:A steroid derivative of the formula: wherein ST is a 7.alpha.-linked steroid nucleus of the general formula: ##STR1## wherein the double bond(s) between carbon atoms 6 and 7 and/or carbon atoms 8 and 9 are optional; wherein the aromatic ring A may optionally bear one or two halogen or alkyl substituents; wherein R.sup.3 is hydrogen, alkyl, or acyl; wherein R.sup.16 is hydrogen, alkyl or hydroxy; wherein either R.sup.17 is hydroxy or acyloxy and R.sup.27 is hydrogen, alkyl, alkenyl or alkynyl, or R.sup.17 and R.sup.27 together form oxo (.dbd.O); wherein R.sup.18 is alkyl; wherein A is alkylene, alkenylene or alkynylene optionally fluorinated and optionally interrupted by --O--, --S--, --SO--, --SO.sub.2 --, --CO--, --NR--, --NRCO--, --CONR--, --COO--, --OCO-- or phenylene, wherein R is hydrogen or alkyl; wherein R.sup.1 is hydrogen, alkyl, alkenyl, cycloalkyl, halogenoalkyl, carboxyalkyl, alkoxycarbonylalkyl, aryl, arylalkyl, or dialkylaminoalkyl, or R.sup.1 is joined to R.sup.2 as defined below; and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR2## --SO.sub.2 NR.sup.2 -- or --CO--; or, when R.sup.1 is not hydrogen, is --O--, --NR.sup.2 --, --(NO)R.sup.2 --, --(PO)R.sup.2 --, --NR.sup.12 COO--; --NR.sup.12 SO.sub.2 --, --S--, --SO-- or --SO.sub.2 --; wherein R.sup.2 is hydrogen or alkyl or R.sup.1 and R.sup.2 together form alkylene or halogenoalkylene; wherein R.sup.12 is hydrogen or alkyl and wherein R.sup.22 is hydrogen, cyano or nitro; or a salt thereof when appropriate.
Inventor(s): Bowler; Jean (Sandbach, GB), Tait; Brian S. (Macclesfield, GB)
Assignee: Imperial Chemical Industries PLC (London, GB2)
Application Number:06/656,466
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 4,659,516
Patent Claim Types:
see list of patent claims
Compound; Process; Composition; Dosage form; Use;

Drugs Protected by US Patent 4,659,516

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 4,659,516

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8327256Oct 12, 1983

International Family Members for US Patent 4,659,516

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