Process for preparing vitamin D.sub.2 compounds and the correspo

Details Process for preparing vitamin D.sub.2 compounds and the correspo Process for preparing vitamin D.sub.2 compounds and the correspo

1990-02-14

1991-07-09

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568822, 568823, 568838, C07C 3522, C07C 3537

Patent

active

050307720

ABSTRACT:
This invention relates to hydroxylated derivatives of vitamin D.sub.2 and a process for preparing such compounds. In particular, a process for preparing the 24-epimer of vitamin D.sub.2 and the corresponding 1.alpha.-hydroxylated derivative thereof is disclosed. The vitamin D.sub.2 derivatives would find application in the treatment of or prophylaxsis for various disease states characterized by calcium and phosphorous imbalances.

REFERENCES:
patent: 3585221 (1971-06-01), DeLuca
patent: 3880894 (1975-04-01), DeLuca et al.
patent: 4226787 (1980-10-01), DeLuca et al.
patent: 4260549 (1981-04-01), DeLuca et al.
patent: 4448721 (1984-05-01), DeLuca et al.
patent: 4554106 (1985-11-01), DeLuca et al.
patent: 4847012 (1989-07-01), DeLuca et al.

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