2 EUDESMANOLIDE-TYPE SESQUITERPENE LACTONES FROM UMBELLIFERAE

被引：7
|
作者：
RYCHLEWSKA, U [1 ]
SZCZEPANSKA, B [1 ]
SERKEROV, SV [1 ]
机构：
[1] AZERBAIJAN ACAD SCI, INST BOT, BAKU 370073, AZERBAIJAN, USSR
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1992年 / 48卷
关键词：
D O I：
10.1107/S0108270192004268
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
(1) 1-beta-Angeloyloxy-2-beta,3-beta-epoxy-5-beta-H,7-alpha-H-10-alpha-methyleudesma-4(15),11(13)-dien-6,12-olide; (II) 1-beta-angeloyloxy-5-beta-H,6-alpha-H,7-alpha-H,11-alpha-H-10-alpha-methyl-eudesma-2,4(15)-dien-6,12-olide. (I) and (II) are two closely related native eudesmanolides whose structures are based on the fundamental 5-beta-H,6-alpha-H,-7-alpha-H,10-alpha-CH3-eudesman-6,12-olide skeleton. As regards molecular conformation, the largest difference between the two compounds is in the cyclohexane B ring which is of the rigid chair type in (I) and of the flexible boat type in (II).
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页码：1543 / 1547
页数：5
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