C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
C07J 53/00 (2006.01) A61K 31/56 (2006.01)
Patent
CA 2146962
Described are etheno- and ethano-19,11-bridged 4- estrenes of general formula (I), in which W, R1, R2, R6a, R6b, R7, R14, R15, R16, R11, R11' and R19 are defined in the description. Also described is a method of preparing them. These compounds exhibit a marked gestagenic action and are suitable for use in the production of drugs.
Fritzemeier Karl-Heinrich
Halfbrodt Wolfgang
Krattenmacher Rolf
Ottow Eckhard
Schwede Wolfgang
Marks & Clerk
Schering Aktiengesellschaft
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