(20S)-2-methylene-19-nor-22-dimethyl-1α,25-dihydroxyvitamin D 3 and (20R)-2-methylene-19-nor-22-dimethyl-1α,25-hydroxyvitamin D 3
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Abstract
Compounds of formula I are provided where X1, X2 and X3 are independently selected from H or hydroxy protecting groups. Such compounds may be used in preparing pharmaceutical compositions and are useful in treating a variety of biological conditions.
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- 1. A compound according to formula I:
- 4. A compound according to formula II:
Specification