Bacopaside III, bacopasaponin G, and bacopasides A, B, and C from Bacopa monniera

Two new saponins, 3-O-$(6-O-sulfonyl-β-D-glucopyranosyl-(1→3) $)-α-L-arabinopyranosyl pseudojujubogenin (1) and 3-O-$(α-L-arabinofuranosyl-(1→2)$)- α-L-arabinopyranosyl jujubogenin (2), a new matsutaka alcohol derivative, (3R)-1-octan-3-yl-(6-O-sulfonyl)-β-D-glucopyranoside (3), a new phenylethanoid glycoside, 3,4-dihydroxyphenylethyl alcohol (2-O-feruloyl)-β-D-glucopyranoside (4), and a new glycoside, phenylethyl alcohol $(5-O-p-hydroxybenzoyl-β-D-apiofuranosyl-(1→2) $)-β-D-glucopyranoside (5), were isolated from Bacopa monniera. Their structures were established by NMR, MS, and chemical methods.