2-METHYLENE-19-NOR-(23S)-25-DEHYDRO-1 -HYDROXYVITAMIN D3-26,23-LACTONE AND 2-METHYLENE-19-NOR-(23R)-25-DEHYDRO-1 -HYDROXYVITAMIN D3-26,23-LACTONE

摘要

Compounds of formula 1A and 1B are provided where XSUP1 /SUPand XSUP2 /SUPare 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 disorders.