WEST AFRICAN TIMBERS .22. DITERPENES OF OXYSTIGMA OXYPHYLLUM HARMS

WEST AFRICAN TIMBERS .22. DITERPENES OF OXYSTIGMA OXYPHYLLUM HARMS
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DOI:
10.1039/j39680001067
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发表时间:
1968-01-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY C-ORGANIC
影响因子:
--
通讯作者:
OKOGUN, JI
OKOGUN, JI
中科院分区:
其他
文献类型:
--
作者:
BEVAN, CWL;EKONG, DEU;OKOGUN, JI

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从尖叶草(Oxystigma oxyphyllum Harms)的新鲜木材中分离得到五种二萜酸类化合物。其中四个属于eperuane系列,而第五个是antipodal laboratories系列。它们是乙二酸、Δ7-乙二酸、乙二酸-7,13-二烯-15-酸和柯巴酸及其对映体labda-8(20),13-二烯-15-酸。这是第一个例子的共同出现的两个对映系列。
Five diterpene acids have been isolated from the fresh wood of Oxystigma oxyphyllum Harms. Four of them belong to the eperuane series while the fifth is of the antipodal labdane series. They are eperuic acid, Δ7-eperuic acid, eperua-7,13-dien-15-oic acid, and copalic acid and its enantiomer labda-8(20), 13-dien-15-oic acid. This is the first example of the co-occurrence of the two antipodal series.