Synthetic approaches to the Manumycin A, B and C antibiotics: The first total synthesis of (+)-Manumycin A
作者:Lilian Alcaraz、Gregor Macdonald、Jacques Ragot、Norman J. Lewis、Richard J.K. Taylor
DOI:10.1016/s0040-4020(98)00879-5
日期:1999.3
The first total synthesis of Manumycin A, as its (+)-enantiomer, is reported. The synthetic route features an asymmetric epoxidation (based on Wynberg's chiral phase transfer methodology) for the preparation of the key epoxyquinol nucleus, and a further demonstration of the utility of the Stille reaction for the construction of the Manumycin lower side chain. This synthesis of Manumycin A corrects
报道了Manumycin A作为其(+)-对映异构体的第一个全合成。该合成路线具有不对称环氧化(基于Wynberg手性相转移方法)的特点,用于制备关键的环氧喹啉核,并进一步证明了Stille反应在构建Manumycin下部侧链方面的效用。Manumycin A的这种合成纠正了原来的立体化学分配,并确认了顺式-羟基环氧化物的排列。还描述了通过Manumycins AC的氧化降解获得的醌的第一合成。