作者:B. Reddy、Harish Kumar、A. Reddy、J. Yadav
DOI:10.1055/s-0033-1338952
日期:——
A flexible and highly diastereoselective formal synthesis of hapalosin, a cyclodepsipeptide isolated from the blue green alga Hapalosiphon welwitschii and having multidrug-resistance-reversing activity is described. The synthetic route involves the addition of organometallic reagent to N-tert-butanesulfinylimine, Jung nonaldol aldol reaction, and Yamaguchi esterification as key steps.
描述了一种灵活且高度非对映选择性的形式合成 hapalosin,一种从蓝绿藻 Hapalosiphon welwitschii 中分离出来并具有多药耐药逆转活性的环缩肽。合成路线包括将有机金属试剂添加到 N-叔丁烷亚磺酰亚胺、Jung 壬醇醛醇反应和 Yamaguchi 酯化作为关键步骤。