(24S)- and (24R)-1a,25-Dihydroxyvitamin D4 compounds and processes for preparing same. Ergosta-5,7- diene compounds which are useful intermediates in the synthesis of the 1α,25-dihydroxyvitamin D4 compounds. The D4 compounds are expected to possess an interesting pharmacological activity in association with the active-type vitamins D3 and D2.
(24S)-和(24R)-1a,25-二羟基
维生素 D4 化合物及其制备工艺。麦角甾-5,7-二烯化合物是合成 1α,25-二羟基
维生素 D4 化合物的有用中间体。预计
D4 化合物与活性型
维生素 D3 和 D2 结合在一起会具有有趣的药理活性。