This paper reports the improved synthesis of 4-O-ethylepipicropodophyllin 5 in two steps starting from Podophyllotoxin 1. The method is more efficient and convenient than the synthetic route from references.
文摘This paper reports the improved synthesis of 4-O-ethylepipicropodophyllin 5 in two steps starting from Podophyllotoxin 1. The method is more efficient and convenient than the synthetic route from references.