Two new germacrane sesquiterpenes: 3,8,14-trihydroxy- 1 (10)E,4Z, 11 (13)-germacra- trien-12, 6-olide, 8-(2-methyl-4-hydroxyl-2E-butenoyl), 3,14-diacetoxy (eupalinolide A, 1), and 3,8,14-trihydroxy-1(10) E,...Two new germacrane sesquiterpenes: 3,8,14-trihydroxy- 1 (10)E,4Z, 11 (13)-germacra- trien-12, 6-olide, 8-(2-methyl-4-hydroxyl-2E-butenoyl), 3,14-diacetoxy (eupalinolide A, 1), and 3,8,14-trihydroxy-1(10) E, 4E, 11(13)-germacratrien-12,6-olide, 8-2-methyl-4-hydroxyl-2E- butenoyl), 3,14-diacetoxy (eupalinolide B, 2) were isolated from Eupatorium lindleyanum. Their structures were elucidated by means of ^1H and ^13C NMR spectroscopic analysis, including 2D NMR technique.展开更多
基金This work was supported by the Natural Science Foundation of Jiangsu Science and Technology Department(No.BK2001185),which are gratefully acknowledged.
文摘Two new germacrane sesquiterpenes: 3,8,14-trihydroxy- 1 (10)E,4Z, 11 (13)-germacra- trien-12, 6-olide, 8-(2-methyl-4-hydroxyl-2E-butenoyl), 3,14-diacetoxy (eupalinolide A, 1), and 3,8,14-trihydroxy-1(10) E, 4E, 11(13)-germacratrien-12,6-olide, 8-2-methyl-4-hydroxyl-2E- butenoyl), 3,14-diacetoxy (eupalinolide B, 2) were isolated from Eupatorium lindleyanum. Their structures were elucidated by means of ^1H and ^13C NMR spectroscopic analysis, including 2D NMR technique.