C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
260/45
C07J 1/00 (2006.01)
Patent
CA 1076102
ABSTRACT OF THE DISCLOSURE Novel estradiol derivatives of the formula Image wherein R1 means an alkyl group of two or more carbon atoms, and R2 is hydro- gen or an acyl groups, which have antiestrogenic activity and are useful as antiestrogenic drugs, are prepared from a corresponding 3-ester or 3-ether by cleavage of the acyl or hydrocarbon group.
266709
Goto Giichi
Hiraga Kentaro
Miki Takuichi
LandOfFree
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