A Carbohydrate Approach for the First Total Synthesis of Cochliomycin C: Stereoselective Total Synthesis of Paecilomycin E, Paecilomycin F and 6′-<i>epi</i>-Cochliomycin C
作者:Bakkolla Mahankali、Pabbaraja Srihari
DOI:10.1002/ejoc.201500395
日期:2015.6
The first total synthesis of the chlorinated resorcylic acid lactone cochliomycin C is achieved starting from the readily available sugar D-lyxose. The strategy has also lead to the total synthesis of natural resorcylic acid lactones paecilomycin E, paecilomycin F and a synthetic analogue 6-epi-cochliomycin C. The key reactions include Ohira–Bestmann alkynylation, ring closing metathesis and regioselective
从容易获得的 D-lyxose 糖开始,实现了氯化间苯二酸内酯 Cochliomycin C 的首次全合成。该策略还导致了天然间苯二酸内酯类青霉素 E、青霉素 F 和合成类似物 6-epi-cochliomycin C 的全合成。关键反应包括 Ohira-Bestmann 炔基化、闭环复分解和在光信条件下的区域选择性甲基化。