申请人:Wisconsin Alumni Research Foundation
公开号:US05194431A1
公开(公告)日:1993-03-16
Vitamin D.sub.2 analogs in which a cyclopropane ring is introduced onto the 24-carbon of the side chain of 1.alpha.,25-dihydroxyvitamin D.sub.2 and 1.alpha.-hydroxyvitamin D.sub.2. The compounds are characterized by a marked intestinal calcium transport activity while exhibiting much lower activity than 1.alpha.,25-dihydroxy-vitamin D.sub.3 in their ability to mobilize calcium from bone. Because of their preferential calcemic activity, these compounds would be useful for the treatment of diseases where bone formation is desirbed, such as osteoporosis.
维生素D.sub.2类似物中,将环丙烷环引入到1α,25-二羟基维生素D.sub.2和1α-羟基维生素D.sub.2的侧链的24碳上。这些化合物具有显著的肠道钙运输活性,同时在从骨骼中释放钙方面的活性要比1α,25-二羟基维生素D.sub.3低得多。由于它们具有优先的钙代谢活性,这些化合物对于治疗需要骨形成的疾病,如骨质疏松症,将会很有用。