19,26,27-trinor-1α,25-dihydroxyvitamin D 3 compounds

Details 19,26,27-trinor-1α,25-dihydroxyvitamin D 3 compounds 19,26,27-trinor-1α,25-dihydroxyvitamin D 3 compounds

2007-07-10

2007-07-10

Qazi, Sabiha N. (Department: 1616)

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

Organic compounds

9,10-seco-cyclopentanohydrophenanthrene ring system or...

C514S167000

Reexamination Certificate

active

11416401

ABSTRACT:
Compounds of formula 1 are provided where X1, X2, and X3are independently selected from H or hydroxy protecting groups, and R1and R2have the definitions provided herein. Such compounds may be used in preparing pharmaceutical compositions and are useful in treating a variety of biological conditions

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