ent-Pimarane derivatives from Dysoxylum hainanense
ent-Pimarane derivatives from Dysoxylum hainanense
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DOI：
10.1016/s0031-9422(00)00482-9
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发表时间：
2001-05-01
期刊：
影响因子：
3.8
通讯作者：
Wu, DG
中科院分区：
文献类型：
--
作者：
Luo, XD;Wu, SH;Wu, DG
四种对映-匹马烯二萜类，对映-18-乙酰氧基-8（14）-匹马烯-15S，16-二醇、对映-18-乙酰氧基-16-羟基-8（14）-匹马烯-15-酮、对映-16，18-二羟基-8（14）-匹马烯-15-酮和对映-19-去甲-4，16，18-三羟基-8（14）-匹马烯-15-酮，以及三种已知的达玛烷三萜类，地衣酸，从海南八角木（Dysoxylum hainanense Merr.）根据光谱技术鉴定了它们的结构。通过化学转化、植物共生和负旋光度分析，确定了4种二萜类化合物的绝对构型为ent-pimarene型。(C)2001爱思唯尔科技有限公司版权所有。
Four ent-pimarene diterpenoids, ent-18-acetoxy-8(14)-pimarene-15S, 16-diol, ent-18-acetoxy-16-hydroxy-8(14) pimaren-15-one, ent-16,18-dihydroxy-8(14)-pimaren-15-one and ent-19-nor-4,16,18-trihydroxy-8(14)-pimaren- 15-one, together with three known damarane triterpenoids, richenoic acid,eichlerianic acid and shoreic acid were isolated from the bark of Dysoxylum hainanense Merr. Their structures were elucidated on the basis of spectroscopic techniques. The absolute configurations of four diterpenoids were assigned as ent-pimarene type by chemical transformation and by co-occurrence in the plant as well as by negative optical rotations for four compounds. (C) 2001 Elsevier Science Ltd. All rights reserved.