C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 401/00 (2006.01) C07J 9/00 (2006.01)
Patent
CA 2129120
2129120 9314763 PCTABS00024 1.alpha.-Hydroxy-24-epi-vitamin D4 and novel intermediates formed in a novel method of preparing this compound. The method includes campesterol as a starting material which is converted to 24-epi-vitamin D4 which is in turn hydroxylated to 1.alpha.-hydroxy-24-epi-vitamin D4 via tosylated and cyclic derivatives of 24-epi-vitamin D4. 1.alpha.-Hydroxy-24-epi-vitamin D4 has been found to be bioactive.
Bishop Charles W.
Knutson Joyce C.
Moriarty Robert M.
Penmasta Raju
Bone Care International Inc.
Shapiro Cohen
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