作者:John Baxter、Ernesto G. Mata、Eric J. Thomas
DOI:10.1016/s0040-4020(98)00889-8
日期:1998.11
: 15 : 16 = 4 : 1 : 1. The major anti-alcohol 14 was taken through to the methoxyacetal 27 so confirming this strategy for the stereoselective synthesis of the C(17)–C(23) fragment of bryostatins. The diol 30, which has configurations at each of its three chiral centres corresponding to the C(23)–C(27) fragment of bryostatins, was prepared in two steps from the aldehyde 28 and converted into the vinylstannane
从乙烯基生成的有机锂试剂碘化物8分发生反应用醛13,得到的混合物的抗-和顺式-甲硅烷醇14和15与区域异构一起顺式-甲硅烷醇16,比14:15:16 = 4:1: 1 。主要的抗酒精剂14被带到了甲氧基乙缩醛27,因此证实了该策略可以用于立体选择性合成抑菌素C(17)-C(23)片段。二醇30从醛28分两步制备并在其三个手性中心分别具有与布氏他汀的C(23)-C(27)片段相对应的构型,然后将其转化为乙烯基锡烷45。