Synthesis and vitamin D receptor affinity of 16-oxa vitamin D<sub>3</sub> analogues
作者:Kouta Ibe、Takeshi Yamada、Sentaro Okamoto
DOI:10.1039/c9ob02339a
日期:——
Two novel 16-oxa-vitamin D3 analogues were synthesized using a tandem Ti(II)-mediated enyne cyclization/Cu-catalyzed allylation, Ru-catalyzed ring-closing metathesis reaction, and a low-valent titanium (LVT)-mediated stereoselective radical reduction of 8α,14α-epoxide as the key steps for the synthesis of the 16-oxa-C,D ring unit. The vitamin D receptor-binding affinity of the synthesized analogues
使用串联的Ti(II)介导的烯炔环化/ Cu催化的烯丙基化,Ru催化的闭环复分解反应和低价钛(LVT)介导的立体选择性合成了两个新颖的16-氧杂-维生素D 3类似物自由基还原8α,14α-环氧化物是合成16-oxa-C,D环单元的关键步骤。通过荧光评估合成的类似物16-oxa-1α,25-(OH)2 VD 3和16-oxa-19-或-1α,25-(OH)2 VD 3的维生素D受体结合亲和力。极化维生素D受体竞争剂测定法和时间分辨荧光能量转移维生素D受体共激活剂测定法。