2Yoshikawa M, Murakami T, Komatsu H, et al. Medicinal foodstuffs Ⅳ. fenugreek seed (1): Structures of trigoneosides Ⅰa, Ⅰb, Ⅱa, Ⅱb, Ⅲ a, and Ⅲ b, new furostanol saponins from the seeds of Indian Trigonella foenum - graecum L. [J]. Chem Pharm Bull, 1997, 45(1) :81 - 87.
3Yoshikawa M, Murakami T, Komatsu H, et al. Medicinal foodstuffs Ⅷ fenugreek seed(2):Structures of six new furostanol saponins trigoueosides Ⅳa, Ⅴa, Ⅴb, Ⅴ, Ⅳ, Ⅱb and Ⅷb from the seeds of Indian Trigonella foenum - graecum L. [J]. Heterocycles, 1998, 47 ( 1 ) : 397 - 405.
4Murakami T,Kishi A,Matsuda H,et al. Medicinal foodstuffs. ⅩⅦ. fenugreek seed. (3): Structures of new furostanol-type steroid saponins, trigoneosides Ⅹ a, Ⅹ b, Ⅺb, Ⅻa, Ⅻb and Ⅹ Ⅲ a from the seeds of Egyptian Trigonella .foenum-graecum L. [J]. Chem Pharm Bull, 2000,48 (7) :994 - 1000.
