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Steroidal glycosides from Capsicum annuum

1994; Elsevier BV; Volume: 37; Issue: 3 Linguagem: Inglês

10.1016/s0031-9422(00)90366-2

1873-3700

Shoji Yahara, Takeshi Ura, Chie Sakamoto, Toshihiro Nohara,

Ion Channels and Receptors

Four new steroidal glycosides, named capsicosides A-D together with proto-degalactotigonin, were isolated from the roots and seeds of Capsicum annuum var. conoides and Capsicum annuum var. fasciculatum. On the basis of detailed chemical and spectroscopic evidence, the structures of capsicosides A-D were shown to be furostanol glycosides corresponding to gitogenin and tigogenin oligoglycosides. Capsicoside A was regarded as the same compound as the previously described capsicoside, whose structure now needs to be revised according to the data presented in this report.