C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
167/194, 260/81
C07J 53/00 (2006.01) A61K 31/56 (2006.01)
Patent
CA 1269102
Abstract of the Disclosure 14,17.beta.-ethano-14.beta.-estratriene and estratetraene of Formula I Image (I), wherein R1 is a hydrogen atom, a methyl or an acyl group of a monocarboxyclic acid of 1 - 12 carbon atoms, R2 is a hydrogen atom or an acyl group of a monocarboxylic acid of 1 - 12 carbon atoms, R3 is a hydrogen atom or a methyl group, and Image is a single or double C-C-bond show strong estrogenic activity.
530713
Bull James R.
Laurent Henry
Schroder Helmut
Thomson Russell I.
Wiechert Rudolf
Marks & Clerk
Schering Aktiengesellschaft
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