3-methylene steroid derivatives
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United States of America Patent
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Jun 17, 2003
Grant Date -
N/A
app pub date -
May 29, 2002
filing date -
Nov 29, 1999
priority date (Note) -
Expired
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Abstract
The invention concerns a 3-methylene steroid derivative having general formula (1) wherein R.sup.1 is H or together with R.sup.3 forms a .beta.-epoxide or R.sup.1 is absent if there is a 5-10 or 4-5 double bond; R.sup.2 is (C.sub.1 -C.sub.5) alkyl or CF.sub.3 ; R.sup.3 is .beta.H, .beta.CH.sub.3 or together with R.sup.1 forms a .beta.-epoxide or R.sup.3 is absent if there is a 5-10 double bond; R.sup.4 is H, lower alkyl; Y is [H, H], [OH, H], .dbd.O, [OH, lower alkyl], [OH, (C2-C5)alkenyl], [OH, (C.sub.2 -C.sub.5)alkynyl] or (C.sub.1 -C.sub.6) alkylidene, whereby said alkyl, alkenyl, alkynyl and alkylidene is optionally halogenated; .dbd.NOR.sup.5, whereby R.sup.5 is H, lower alkyl; dotted lines represent an optional double bond, or prodrugs thereof for the treatment of arthritic diseases and/or autoimmune diseases. ##STR1##
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