摘要
应用~1H-~1H COSY,NOESY,^(13)C-~1H COSY等 2DNMR和DEPT技术,完成了赤霉酸甲酯(2),13-O-乙酰基赤霉素甲酯(3)及其3位差向异构体(4)的~1H和^(13)CNMR化学位移的全指定,并探讨了它们的相对构型,相关质子间的偶合常数也支持所得结果。
Gibberellins form an important group of plant growth hormone, which have many biological activities. Its structure was determined by X-ray single crystal diffraction, no complete assignment of 1H and 13C NMR spectrum of the compounds have been reported. In this paper, all the 1H and 13C NMR chemical shifts of methyl gibberellate (2), 13- acetoxygibberellin A1 methyl ester ( 3 ) and its 3-epimer (4) were assigned by 1H-1H COSY , 13C-1H COSY, NOESY and DEPT, and their relative configurations were discussed.
出处
《波谱学杂志》
CAS
CSCD
1993年第1期61-67,共7页
Chinese Journal of Magnetic Resonance
关键词
赤霉酸甲酯
NMR
植物激素
Two-dimensional NMR
Chemical shift
Methyl gibbercllate
Epimer
Configuration .
