Synthesis and Biological Evaluation of 4-Substituted Vitamin D and 14-Epi-Previtamin D Analogs
作者:Daisuke Sawada、Yuya Tsukuda、Hiroshi Saito、Ken-ichiro Takagi、Kyouhei Horie、Eiji Ochiai、Kazuya Takenouchi、Atsushi Kittaka
DOI:10.1248/cpb.57.1431
日期:——
We synthesized the 4-hydroxy and 4-methoxy analogs of active vitamin D3 (1α,25(OH)2D3, 1) and its C14-epimer with the previtamin D3 form of 14-epi-1α,25(OH)2preD3 (14-epi-pre1). Their vitamin D receptor (VDR) binding affinity and osteocalcin promoter transactivation activity in HOS cells were evaluated, and had lower activity than the natural hormone (1) and 14-epi-pre1, respectively.
我们合成了活性维生素D3(1α,25(OH)2D3, 1)的4-羟基和4-甲氧基类似物及其C14-表异构体,以及维生素D3前体14-epi-1α,25(OH)2preD3 (14-epi-pre1)的C14-表异构体。我们评估了它们与维生素D受体(VDR)的结合亲和力以及在HOS细胞中的骨钙素启动子转激活活性,结果发现它们分别比天然激素(1)和14-epi-pre1的活性低。