Wang L Q, Qin G W, Chen S N, Li C J
Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Tai-Yuan Road, 200031, Shanghai, PR China.
Fitoterapia. 2001 Nov;72(7):779-87. doi: 10.1016/s0367-326x(01)00333-1.
Three new diterpenoids, pierisformosides G-I (1-3) and a diphenylamine derivative 4 have been isolated from the ethanol extract of Pieris formosa leaves, compound 1 being a new type seco-ring-A kaurane diterpene glucoside. Their structures were elucidated with the aid of NMR spectroscopy including two-dimensional-NMR techniques.
从美丽马醉木叶的乙醇提取物中分离出三种新的二萜类化合物，美丽马醉木苷G-I（1-3）和一种二苯胺衍生物4，化合物1是一种新型的裂环-A贝壳杉烷二萜葡萄糖苷。借助包括二维核磁共振技术在内的核磁共振光谱对它们的结构进行了阐明。
