inhibitor (+)-citrafungin A 1 is described. The key steps include a selective vinyl anion addition of the anion derived from iodide 10 to the lactone 9 and lactonization/selective deprotection of the allylic alcohols 8 and 23 to afford the citrafungin lactone. Esterification with the isocitrate 6 afforded citrafungin A tetra-t-butyl ester 5 which completed the formal total synthesis.
描述了真菌GGTase I
抑制剂(+)-西拉芬净A 1的正式全合成。关键步骤包括将来自
碘化物10的阴离子选择性
乙烯基阴离子加到内酯9中,以及将
烯丙醇8和23进行内酯化/选择性脱保护,以得到西他芬净内酯。酯化与
异柠檬酸6得到citrafungin甲四吨丁基酯5即完成了正式的全合成。