5SUN Kai, LI Xian, LI Wen, et al. Two new lactones and one new aryl-8-oxo-bicyclo[ 3, 2, 1 ] oct-3-en-2-one from Descurainia sophia [ J ]. Chem Pharm Bull, 2004, 52 (12) :1483 - 1486.
6KYOKO I, SATOKO N, HISAE F, et al. A dipeptide derivative from Hypericum japonicum [J ]. Phytochemistry, 1991,30 (11) :3639- 3641.
7HANS A, MATTHIAS L, REINER W, et al. New lignan glucosides from Stemmadenia minima [ J ]. Plant Med, 1992, 58 :270 - 272.
8STEPHEN J A, GEOFFREY S B. Conformational analysis in carbohydrate chemistry. Ⅲ The ^13C-NMR of the hexuloses [ J ]. Aust J Chem, 1976, 29 (3) : 1249 - 1265.