月光花素甲中DC-2b的NMR与结构研究

THE STRUCTURE STUDY OF ONE COMPONENT (DC-2b) OF CALONYCTIN A (DC-2) BY NMR SPECTROSCOPY

该文研究了从月光花叶中提取,并用高压液相色谱收集制备,命名为DC—2b化合物的一维及二维NMR谱.通过对它的一维,~1H—NMR,^(13)C—NMR宽带去偶,DEPT及选择性INEPT和二维~1H—~1H COSY,NOESY及^(13)C—~1H COSY等谱图的综合分析研究,确证了它的结构.

Calonyctin A which was extracted from leaves of Calonyction aculeatum ( L. ) House was discovered being not a single component. We extracted the sample from Calonyction aculeatum (L. ) House then separated by HPLC and got two major components denominated as DC-2b and DC-2d. In this paper, the structure of DC-2b was determined by 13C-NMR, DEPT, SELECTIVE INEPT, 2D 1H-COSY, 2D 13C-1H COSY and 2D-NOESY techniques.