Cytotoxic and novel skeleton compounds from the heartwood of Chamaecyparis obtusa var. formosana

Abstract

The novel skeleton compounds, chamaecypanone C (3) and obtunorlignan A (4) were isolated from the heartwood of Chamaecyparis obtusa var. formosana. The structure of 3 was elucidated as a dimeric of monoterpene and norlignan with tricyclo[5.2.2.0]undecane and the structure of 4 was elucidated as a norlignan skeleton by spectroscopic methods. Compound 3… (More)

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