作者:Sadagopan Raghavan、S. Ganapathy Subramanian
DOI:10.1016/j.tet.2011.07.079
日期:2011.9
convergent stereoselective synthesis of the C13–C34 fragment of (−)-mucocin is described. The salient features include (a) the bidirectional synthesis of the C-2 symmetric C13–C21 subunit, (b) regio- and stereoselective preparation of a 1,3-diol derivative from a diene activated by NBS via intramolecular nucleophilic sulfinyl group participation, (c) utilizing the self-metathesis reaction to prepare
描述了(-)-粘菌素C13-C34片段的会聚立体选择性合成。其显着特征包括:(a)C -2对称的C13–C21对称亚基的双向合成;(b)由NBS通过分子内亲核亚磺酰基基团参与的二烯的区域和立体选择性制备1,3-二醇衍生物, (c)利用自易位反应制备官能化的C 10烯烃,和(d)区域和立体选择性分子间环氧化物开口以在C 20和C 24之间构建醚键。有机催化的α-羟基化反应已被用于创建C1-C12亚基的C4立体中心。利用B-烷基铃木偶联尝试的两个亚基的结合未成功。