Krishna Vivek, Chang Chi-I, Chou Chang-Hung
Department of Life Sciences, National SunYat-sen University, Kaohsiung, 804, Taiwan.
Magn Reson Chem. 2006 Aug;44(8):817-9. doi: 10.1002/mrc.1844.
1H and 13C NMR assignments of the two isomeric epoxysitosterols, 5,6 alpha-epoxy-5 alpha-stigmastan-3 beta-ol (1) and 5,6 beta-epoxy-5 beta-stigmastan-3 beta-ol (2), isolated from the leaves of Rhododendron formosanum Hemsl were achieved by 1D and 2D techniques such as DEPT, HMBC, HMQC, COSY and NOESY.
从台湾杜鹃（Rhododendron formosanum Hemsl）叶片中分离得到的两种异构环氧豆甾醇，即5,6α-环氧-5α-豆甾烷-3β-醇（1）和5,6β-环氧-5β-豆甾烷-3β-醇（2），通过DEPT、HMBC、HMQC、COSY和NOESY等一维和二维技术完成了¹H和¹³C NMR归属。
