摘要
本文用同核化学位移相关谱和二维J分解谱归属了冬凌草甲素的~1H谱,测定了所有的质子标量偶合常数,根据一系列的Karplus公式计算了二面角,用自编WUPH计算程序,计算出冬凌草甲素的分子构型。
Two dimensional heteronuclear and homonuclear chemical shift correlation NMR experiments have been used for the complete assignment of all proton chemical shifts of oridonin, and the coupling constants of oridonin were measured by one dimentional ~1H and2D-J resolved spectra. The dihedral angles were calculated by using a series of modified Karplus equations. The relative configuration of oridonin was calculated from dihedral angles and standard bond lengths.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1992年第5期498-503,共6页
Acta Chimica Sinica
基金
国家自然科学基金资助的课题
