• Korean Journal of Pharmacognosy
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• v.29 no.4
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• pp.347-352
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• 1998

Six minor diterpenes were isolated from Biota orientalis (Cupressa-ceae) leaves. On the basis of comparison with reported spectral data, they were identified as 7,15-isopimaradien-18-oic acid (isopimaric acid), 8(14),15-isopimaradien-18-oic acid (sandaracopimaric acid), 7,15-isopimaradien-3-ol, 7,15-isopimaradien-3,19-diol, 8(17),13-labdadien-16,15-olid-19-oic acid (demethylpinusolide), and 15-hydroxy-8(17),13-labdadien-19-oic acid (isocupric acid). They were first reported in the genus of Biota.