1998•Journal of Natural ProductsRequires access

New Diterpenes from the Heartwood of Chamaecyparis obtusa var. formosana

Yueh‐Hsiung Kuo, Chia‐Hsien Chen, Shou‐Ling Huang

Abstract

An abietane diterpene, 11,14-dihydroxy-8,11,13-abietatrien-7-one (1); a seco-abietane diterpene, obtuanhydride (2); and an isopimarane diterpene, 18,19-O-isopropylidene-18, 19-dihydroxyisopimara-8(14),15-diene (3) were isolated from the heartwood of Chamaecyparis obtusa var. formosana. The structures of these new compounds were elucidated by spectroscopic methods.

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Key concepts: Diterpene, Abietane, Chamaecyparis, Stereochemistry, Chemistry, Botany, Biology