Our retrosynthetic analysis of pyripyropene A (1) is shown in Scheme 1. We adopted a reliable procedure reported by our group previously13 for the conversion of intermediate 2 into 1.
Our retrosynthetic analysis of pyripyropene A (1) is shown inScheme 1. We adopted a reliable procedure reported by our grouppreviously13 for the conversion of intermediate 2 into 1.