The enantioselective synthesis of simplified southern-half fragments of soraphen A
作者:Bernard Loubinoux、Jean-Luc Sinnes、Anthony C. O'Sullivan、Tammo Winkler
DOI:10.1016/0040-4020(95)00098-s
日期:1995.3
comprises a southern-half subunit of the fungicidal macrolide soraphen A 1. It was prepared by a Meinwald reaction of the enolate of S-7 with the lactone S-8. Its enantiomer and diastereomers were synthesized in a similar manner. The lactone S-8 and its enantiomer R-8 were prepared by three different routes, including the enantioselective catalytic reduction of the β-keto ester 17. These lactones are
化合物2包含杀真菌的大环内酯索拉芬A 1的南半亚基。它是通过S-7的烯醇化物与内酯S-8的Meinwald反应制备的。其对映异构体和非对映异构体以类似方式合成。内酯S-8及其对映体R-8是通过三种不同的途径制备的,包括β-酮酸酯17的对映选择性催化还原。这些内酯是新的,并且潜在地用作C-5不对称结构单元。