Ma Xiao-Chi, Liu Ke-Xin, Zhang Bao-Jing, Xin Xiu-Lan, Huang Jian
School of Pharmaceutical Sciences, Dalian Medical University, Dalian 116027, PR China.
Magn Reson Chem. 2008 Nov;46(11):1084-8. doi: 10.1002/mrc.2297.
Ten sesquiterpenens were isolated from Inula helenium. Among them, three eudesmanolides: 15-hydroxy-11betaH-eudesm-4-en-8beta,12-olide (1), 3alpha-hydroxy-11betaH-eudesm-5-en-8beta,12-olide (2) and 2beta, 11alpha-dihydroxy-eudesm-5-en-8beta,12-olide (3) are new compounds. Their chemical structures were determined by spectral methods including 2D NMR.
从土木香中分离出了10种倍半萜。其中，三种桉叶烷型内酯：15-羟基-11βH-桉叶-4-烯-8β,12-内酯（1）、3α-羟基-11βH-桉叶-5-烯-8β,12-内酯（2）和2β,11α-二羟基-桉叶-5-烯-8β,12-内酯（3）是新化合物。它们的化学结构通过包括二维核磁共振在内的光谱方法确定。
