Cajucarins A and B, New Clerodane Diterpenes from Croton cajucara, and Their Conformations

Hideji ITOKAWA; Yoshitatsu ICHIHARA; Masahiro SHIMIZU; Koichi TAKEYA; Mario MOTIDOME

doi:10.1248/cpb.38.701

Hideji ITOKAWA, Yoshitatsu ICHIHARA, Masahiro SHIMIZU, Koichi TAKEYA, Mario MOTIDOME

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Keywords: Croton cajucara, Euphorbiaceae, clerodane diterpene, cajucarin A, cajucarin B, conformational study, molecular orbital calculation

JOURNAL FREE ACCESS

1990 Volume 38 Issue 3 Pages 701-705

DOI https://doi.org/10.1248/cpb.38.701

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Abstract

Two new clerodane diterpenes, cajucarins A (1) and B (2), were isolated from the cortices of Croton cajucara. The conformations of 1 and 2 were studied by means of spectroscopic methods and molecular orbital calculations.

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