9Uchiyama T, Furukawa M, Isobe S, et al. New oleanane-type triterpene saponins from Millettia speciosa [J]. Heterocycles, 2003, 60(3): 655-661.
10Takeshi K, Koji I, Chiho T, et al. Chemical studies on Sophora tomentosa: the isolation of a new class of isoflavonoid [J]. Chem Pharm Bull, 1990, 38(10): 2756- 2759.
