Synthesis of 19-nor vitamin D compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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556444, 556482, 568669, 568670, 568828, C07C 3517, C07C 3514, C07C 43184, C07F 702

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054866367

ABSTRACT:
New compounds of the formula ##STR1## where Y' represents hydroxy, protected-hydroxy, O-tosyl, O-mesyl, bromine, chlorine, or iodine and X.sup.1 and X.sup.2 may independently represent hydrogen or a hydroxy-protecting group are useful as intermediates for the production of 19-nor vitamin D derivatives, particularly 1.alpha.,25-dihydroxyvitamin D.sub.3, from (-)quinic acid.

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