C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
260/60
C07J 9/00 (2006.01)
Patent
CA 1077028
ABSTRACT A process for preparing cholesta-5,7-diene-1.alpha., 3.beta.,25-triol by reduction of a 1.alpha.,2.alpha.-epoxide with a metal hydride such as lithium aluminum hydride. The triol is useful as an intermediate in the preparation of 1.alpha.,25-dihy- droxycholecalciferol.
329124
Deluca Hector F.
Ishikawa Masayuki
Kaneko Chikara
Matsunaga Isao
Nagano Hiroyuki
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