Studies on the Constituents of Cucurbitaceae Plants. VII. On the Saponin Constituents of Gynostemma pentaphyllum MAKINO. (3)
- 1 January 1984
- journal article
- research article
- Published by Pharmaceutical Society of Japan in YAKUGAKU ZASSHI
- Vol. 104 (4) , 325-331
- https://doi.org/10.1248/yakushi1947.104.4_325
Abstract
New saponins, named gypenosides XXVII (1), XXVIII (2), XXXVIII (3), XXXIX (4), XL (5), XLI (6) and LV (7) were isolated from the aerial parts of G. pentaphyllum collected in Hyogo prefecture [Japan]. Structures of 1-6 and 7 were established as 3-O-.beta.-sophoroside of dammar-24-ene-3.beta.,19,20(S)-triol, dammar-24-ene-19-oxo-3.beta.,20(S)-diol, dammar-24-ene-3.beta.,12.beta.,19,20(S)-tetraol, dammar-24-ene-3.beta.,12.beta.,19,20(R)-tetraol, dammar-24-ene-19-oxo-3.beta.,12.beta.,20(R)-triol, dammar-24-ene-3.beta.,19,20(R)-triol and as 3-O-.beta.-D-glucopyranosyl-20(S)-.beta.-xylopyranosyl (1 .fwdarw. 6)-.beta.-D-glucopyranoside of dammar-24-ene-3.beta.,19,20(S)-triol, respectively, by means of 13C NMR spectroscopy.Keywords
This publication has 0 references indexed in Scilit: