Remarkable effect of 2α-modification on the VDR antagonistic activity of 1α-hydroxyvitamin D<sub>3</sub>-26,23-lactones
作者:Nozomi Saito、Toshihiro Matsunaga、Toshie Fujishima、Miyuki Anzai、Hiroshi Saito、Kazuya Takenouchi、Daishiro Miura、Seiichi Ishizuka、Hiroaki Takayama、Atsushi Kittaka
DOI:10.1039/b311107e
日期:——
Novel 2α-methyl-, 2α-(3-hydroxypropyl)- and 2α-(3-hydroxypropoxy)-substituted 25-dehydro-1α-hydroxyvitamin D3-26,23-lactone derivatives were efficiently synthesized via Reformatsky type allylation and palladium-catalyzed alkenylative cyclization processes, and their biological activities were evaluated. Introducing functional groups into the 2α-position of the vitamin D3-26,23-lactones resulted in remarkable enhancement of their antagonistic activity on vitamin D receptor (VDR).
新型2α-甲基、2Îα-(3-羟基丙基)和2Îα-(3-羟基丙氧基)取代的25-脱氢-1Îα-羟基维生素D3-26,23-内酯衍生物通过Reformatsky型烯丙基化和钯催化的烯烃化环化过程被高效合成,并对其生物活性进行了评估。向维生素D3-26,23-内酯的2Îα位引入功能团显著提高了它们对维生素D受体(VDR)的拮抗活性。