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Echinodolides A and B, New Cembrane Diterpenoids with an Eight-Membered Lactone Ring from the Leaves of Echinodorus m acrophyllus

2002; American Chemical Society; Volume: 65; Issue: 1 Linguagem: Inglês

10.1021/np0104119

1520-6025

Hideyuki Shigemori, Sayaka Shimamoto, Mitsuhiro Sekiguchi, Ayumi Ohsaki, Jun’ichi Kobayashi,

Phytochemistry Medicinal Plant Applications

Two new cembrane diterpenoids with an eight-membered lactone ring, echinodolides A (1) and B (2), were isolated from the leaves of the Brazilian medicinal plant Echinodorus macrophyllus ("Chapéu-de-couro"), and the structures and relative stereochemistry were elucidated from their spectroscopic data.