Li Rong-Tao, Zhao Qin-Shi, Li Sheng-Hong, Han Quan-Bin, Sun Han-Dong, Lu Yang, Zhang Li-Li, Zheng Qi-Tai
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
Org Lett. 2003 Apr 3;5(7):1023-6. doi: 10.1021/ol027524j.
[structure: see text] A novel nortriterpene, micrandilactone A, was isolated from the medicinal plant Schisandra micrantha. This is the first example of an unusual, natural, highly oxidized cycloartane skeleton with a biosynthetically modified eight-membered ring D isolated from the family Schisandraceae.