Preparation of 19-Nor-vitamin D compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – 9,10-seco-cyclopentanohydrophenanthrene ring system or...

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C07C40100

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058565361

ABSTRACT:
Disclosed are 20-epi-19-nor-vitamin D compounds having the structure: ##STR1## where each of X.sub.1 and X.sub.2 independently represents hydrogen or a hydroxy-protecting group, and Z represents various known side chains.

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