SESQUITERPENE LACTONES AND A C-20 ALIPHATIC LACTONE FROM TEXAS BITTERWEED, HYMENOXYS-ODORATA

被引:26
作者
GAO, F [1 ]
WANG, HP [1 ]
MABRY, TJ [1 ]
WATSON, WH [1 ]
KASHYAP, RP [1 ]
机构
[1] TEXAS CHRISTIAN UNIV,DEPT CHEM,FT WORTH,TX 76129
关键词
aliphatic lactone; Asteraceae; guaianolides; Hymenoxys odorata; modified pseudoguaianolides; pseudoguaianolides; sesquiterpene lactones;
D O I
10.1016/0031-9422(90)85116-W
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The aerial parts of the Texas bitterweed Hymenoxys odorata yielded five guaianolides, four pseudoguaianolides, five modified pseudoguaianolides and one aliphatic lactone. Ten of these compounds, hymenovin B and C, hymenolane B, hymenoratin B-G and the aliphatic lactone, 3β-hydroxyicosan-1, 5β-olide were previously unreported. The known lactones are hymenoxon, hymenolane, hymenoratin, hymenograndin and florilenalin. Structures, including stereochemistries, were elucidated by NMR and NOE experiments. The structure of hymenoratin D was established by X-ray analysis. © 1990.
引用
收藏
页码:551 / 560
页数:10
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