FOUR PREGNANE GLYCOSIDES, BOUCEROSIDES AI, AII, BI AND BII, FROM BOUCEROSIA AUCHERIANA

Article abstract of DOI:10.1016/0031-9422(88)83045-0

Four new glycosides were isolated from Boucerosia aucheriana.The structures of boucerosides AI, AII, BI and BII were deduced on the basis of chemical and spectral evidence as boucerogenin I 3-O-β-D-glucopyranosyl(1-4)-6-deoxy-3-O-methyl-β-D-allopyranosyl-(1-4)-β-D-oleandropyranosyl-(1-4)-β-D-cymaropyranoside, boucerogenin II 3-O-β-D-glucopyranosyl-(1-4)-6-deoxy-3-O-methyl-β-D-allopyranosyl-(1-4)-β-D-oleandropyranosyl-(1-4)-β-D-cymaropyranoside, boucerogenin I 3-O-β-D-glucopyranosyl-(1-4)-6-deoxy-3-O-methyl-β-D-allopyranosyl-(1-4)-β-D-cymaropyranosyl-(1-4)-β-D-cymaropyranoside, and boucerogenin II 3-O-β-D-glucopyranosyl-(1-4)-6-deoxy-3-O-methyl-β-D-allopyranosyl-(1-4)-β-D-cymaropyranosyl-(1-4)-β-D-cymaropyranoside, respectively.