化学
倍半萜
菊科
碳-13核磁共振
立体化学
质子核磁共振
倍半萜内酯
植物
生物
作者
Alexsandro E. Ferreira,Ana Carolina Ferreira Soares,Julian C. S. Pavan,Pedro Y. Kovatch,Humberto Takeshi Sakamoto,João Luís Callegari Lopes,Vinícius Palaretti,Vladimir Constantino Gomes Heleno
摘要
Abstract A complete 1 H and 13 C NMR analysis for a group of four sesquiterpene lactones isolated from Eremanthus elaeagnus (Asteraceae) is described in this work. 1 H NMR, 13 C { 1 H} NMR, gCOSY, gHMQC, and gHMBC experiments were performed to provide sufficient structural information to allow an unequivocal assignment. All hydrogen coupling constants were measured, clarifying all hydrogen signal multiplicities.
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