New physalins from Physalis angulata and Physalis lancifolia. Structure and reactions of physalins D, I, G and K

Phytochemistry
1980.0

Abstract

The structures of physalins I, G and K are established respectively as 5,6-dihydro-5α-methoxy-6β-hydroxy, 4,5-dehydro-5,6-dihydro-4β-hydroxy and 5,6-dihydro-4α,5α-epoxy-6α-hydroxy derivatives of physalin B. The chemistry of physalin D, and the synthesis of physalins D and I from physalin F and physalin K from physalin G are described.

DOI： 10.1016/0031-9422(80)83078-0

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