摘要
利用柱色谱对穿心莲地上部分的提取物进行分离,得到3,14-二去氧穿心莲内酯苷和14-去氧穿心莲内酯苷。利用核磁共振氢谱(1H-NMR)、碳谱(13C-NMR)以及双量子滤波相关谱(DQFCOSY)、总相关谱(TOCSY)、异核多量子相干谱(HMQC)、异核多键相关谱(HMBC),解析这两个化合物的结构。确定了1H-NMR的氢信号和13C-NMR的碳信号的归属,并且用NOESY对3,14-二去氧穿心莲内酯苷的立体结构进行了研究。
The ^1H-NMR and ^13C-NMR spectra of 3,14-dideoxyandrographolide glucoside and 14-deoxyan- drographolide glucoside have been assigned based on two-dimensional correlation spectroscopy including double-quantum filtered correlation spectroscopy (DQF-COSY), total correlation spectroscopy (TOCSY), heteronuclear multiple-quantum coherence (HMQC), and heteronuclear multiple-bond correlation (HMBC). The absolute configuration of 3,14-dideoxyandrographolide glucoside was studied by means of nuclear overhauser effect spectroscopy (NOESY).
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2007年第2期304-308,共5页
Chinese Journal of Analytical Chemistry
关键词
穿心莲
3
14.二去氧穿心莲内酯苷
14-去氧穿心莲内酯苷
核磁共振
结构解析
Andrographis paniculate, 3,14-dideoxyandrographolide glucoside, 14-deoxyandrographolide glucoside, nuclear magnetic resonance spectroscopy, structure analysis