Three new pregnane glycosides designated as pergulinine, pallicine and pallicinine have been isolated from the chloroform soluble extract of Pergularia pallida. On the basis of chemical and spectroscopic evidence their structures were established as drevogenin P-3-O-α-L-rhamnopyranosyl-(1→4)-O-β-D-cymaropyranoside, cissogenin-3-O-β-D-oleandropyranoside and calogenin-3-O-α-L-diginopyranosyl-(1→4)-O-β-D-digitoxopyranoside, respectively.
HayashiK, WadaK, MitsuhasiH, BandoH, TakaseM, TeradaS. (1981) Further investigation of antitumor condurango glycosides with C-18 oxygenated aglycone. Chemical and Pharmaceutical Bulletin, 29, 2725–2730.
4.
ElberR, WeissEK, ReichsteinT. (1969) Cardenolide und Pregnan Derivate aus den Wurzeln von Trachycalymum fimbriatum. Helvetica Chimica Acta, 52, 2583–2613.
5.
SinghalsS, KhareMP, KhareA. (1980) Cissogenin, a pregnane genin from Marsdenia tenacissima. Phytochemistry, 19, 2427–2430.
6.
KhareNK, KumarR, KhareMP, KhareA. (1986) Sarcogenin, A pregnane derivative from Pergularia pallida and Sarcostemma brevistigma. Phytochemistry, 25, 491–493.
7.
KhareNK, KhareMP, KhareA. (1984) Two pregnane ester glycoside from Pergularia pallida. Phytochemistry, 23, 2931–2935.
8.
TschescheR, GrimmerG, SeehoferF. (1953) Die quantitative Trennung und Identifizierung von Herzgiftglykosiden aus Digitalis purpurea und lanata durch. Chemische Berichte, 86, 1235–1241.
