Synthesis of the C-glycosidic analog of adenophostin A, a potent IP3 receptor agonist, using a temporary silicon-tethered radical coupling reaction as the key step
作者:Hiroshi Abe、Satoshi Shuto、Akira Matsuda
DOI:10.1016/s0040-4039(00)00171-4
日期:2000.4
Synthesis of the C-glycosidic analog (3) of adenophostin A, a very potent IP3 receptor agonist, was achieved using a temporary silicon-tethered reductive radical coupling reaction as the key step. Radical reaction of the silaketal substrate 6 with Bu3SnH/AIBN in benzene occurred stereoselectively, and subsequent desilylation gave the desired C-glycosidic disaccharide 7 with the (3α,1′α)-configuration
使用暂时的硅链式还原性自由基偶联反应作为关键步骤,完成了非常有效的IP 3受体激动剂腺磷素A的C-糖苷类似物(3)的合成。硅酮基底物6与Bu 3 SnH / AIBN在苯中的自由基选择性地发生自由基反应,随后进行甲硅烷基化反应,以(3α,1'α)-构型为主要产物,得到了所需的C-糖苷二糖7。通过Vorbrüggen糖基化反应通过引入腺嘌呤碱基将化合物7转化为靶标3。