Five new diterpenoids, 11-hydroxyabieta-8,11,13-trien-7-one (1), 11,12,14-trihydroxyabieta-8,11,13-trien-7-one (2), 6.BETA.,7.ALPHA.-diacetoxyroyleanone (3), 7.BETA.-hydroxymanoyl oxide (4), and 9.ALPHA.-hydroxyisopimara-8(14),15-dien-7-one (5) were obtained from the bark of Taiwania cryptomerioides. The structures of the new compounds 1-5 were elucidated on the basis of spectral analysis and chemical evidence. (author abst.)
關聯:
Chemical & pharmaceutical bulletin, V.53(3), .p.286-289
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