C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
204/91.06
C07J 21/00 (2006.01) C07C 401/00 (2006.01) C07J 9/00 (2006.01) C07J 15/00 (2006.01)
Patent
CA 1249546
ABSTRACT: The invention relates to the preparation of 9.beta.,10.alpha.-5,7-dienesteroids by irradiating the corresponding 9.alpha.,10.beta. steroids with filtered ultraviolet light of an antimony lamp.
474060
Mos Gerardus H.m.
Rappoldt Menso P.
Duphar International Research B.v.
Fetherstonhaugh & Co.
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