Bacopaside I and II: two pseudojujubogenin glycosides from Bacopa monniera. [Erratum: Feb 2002, v. 59 (3), p. 365.]
2001
Chakravarty, A.K. | Sarkar, T. | Masuda, K. | Shiojima, K. | Nakane, T. | Kawahara, N.
Two saponins, designated as bacopaside I and II, have been isolated from Bacopa monniera Wettst. and their structures have been elucidated as 3-O-alpha-L-arabinofuranosyl-(1 leads to 2)-[6-O-sulphonyl-beta-D-glucopyranosyl-(1 leads to 3)]-alpha-L-arabinopyranosyl pseudojujubogenin (1) and 3-O-alpha-L-arabinofuranosyl-(1 leads to 2)-[beta-D-glucopyranosyl (1 leads to 3)]-beta-D-glucopyranosyl pseudojujubogenin (2) mainly on the basis of 2D NMR and other spectral analyses.
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