New 6- or 7-methylenandrosta-1, 4-diene-3,17-dione derivatives and process for their preparation
申请人:FARMITALIA CARLO ERBA S.r.l.
公开号:EP0253591A1
公开(公告)日:1988-01-20
The invention relates to new 6-or 7-methylenandrosta-1,4-diene-3,17-diones of the following formula
wherein R is hydrogen or fluorine; R1 is hydrogen or C1-C6 alkyl; R2 is hydrogen or halogen; one of R3 and R4 is = CH2 and the other is hydrogen or C1-C4 alkyl, and when R3 is = CH2, at least one of R and R4 is other than hydrogen; and the symbol -(x)- represents a double bond and the symbol -(y)- represents a single bond when R3 is = CH2 or the symbol -(x)- represents a single bond and the symbol -(y)- represents a double bond when R4 is = CH2, which are useful in therapy, in particular as anti-cancer agents.
6- or 7-methylenandrosta-1,4-diene-3,17-dione derivatives and process
申请人:Farmitalia Carlo Erba S.r.l.
公开号:US04824830A1
公开(公告)日:1989-04-25
The invention relates to new 6- or 7-methylenandrosta-1,4-diene-3,17-diones of the following formula ##STR1## wherein R is hydrogen or fluorine; R.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.2 is hydrogen or halogen; one of R.sub.3 and R.sub.4 is .dbd.CH.sub.2 and the other is hydrogen or C.sub.1 -C.sub.4 alkyl, and when R.sub.3 is .dbd.CH.sub.2, at least one of R and R.sub.4 is other than hydrogen; and the symbol ##STR2## represents a double bond and the symbol ##STR3## represents a single bond when R.sub.3 is .dbd.CH.sub.2 or the symbol ##STR4## represents a single bond and the symbol ##STR5## represents a double bond when R.sub.4 is .dbd.CH.sub.2, which are useful in therapy, in particular as anti-cancer agents.