【作者】 崔育新； 谢文革； 潘鑫复；

【Author】 Yu-xin Cui Wen-ge Xie Xin-fu Pan The State Key Laboratory of Applied Organic Chemistry Lanzhou University,Lanzhou 730000

【机构】 兰州大学应用有机化学国家重点实验室；

【摘要】 <正>赤霉素是一类具有显著生理活性的四环二萜类植物生长刺激素,广泛存在于菌类代谢产物和高等植物体内.赤霉酸（3）结构已被X-光衍射确定。但在NMR研究方面对赤霉酸（3）及其甲酯（1）的报道只限于几种较易识别的质子化学位移数据,对于其¹³C的化学位移指定也不完善.由于赤霉酸（3）在自然界含量较高,且易得到,我们利用它进行化学转化,通过下列几步反应,得到Trachyloagibberellin的类似物（2）.更多还原

【Abstract】 Gibberellins form an important group of plant growth hormone,which have many biological activities.Its structure was detetmined 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 （1） and its analogue （2） were assigned by ¹H-¹H COSY,¹³C-¹H COSY,NOESY and DEPT,and their relative con- figurations were discussed.更多还原