据报道,采用收敛方法后,新的七环类抗生素cervinomycin A 1和A 2的总合成。我们策略的基石是通过光化学电环化构建中心环D。通过相对简单的合成方案组装恶唑基-异喹啉酮片段(ABC环)和rings吨酮片段(EFG环),并通过Wittig反应偶联以产生并建立关键的光环化反应。我们成功的方法和可以容易地适合于这些有趣抗生素类似物的合成。
Total synthesis of cervinomycin A1-trimethyl ether and cervinomycin A2-methyl ether
作者:Goverdhan Mehta、Shailesh R. Shah
DOI:10.1016/s0040-4039(00)93465-8
日期:1991.9
The heptacyclic framework of cervinomycin antibiotics has been constructed through a C + EFG --> CEFG --> CDEFG --> ABCDEFG approach in which the photochemical generation of ring D was a key step.