Iridoid Glycosides from Buddleja lindeyana
摘要
Aim To study the chemical constituents of Buddleja lindeyana. Methods The constituents were separated and purified by different methods of chromatography, and their structures were elucidated by IR, MS and NMR. Results Three iridoid glycosides and two other compounds were isolated from Buddleja lindeyana. Their structures were elucidated to be 6-O-feruloylajugol (1), erythro-6-oxo-4′-(3-methoxyl-4-hydroxyphenylglycol-8″)-feruloylaj-ugol (2), threo-6-oxo-(4′-(3-)methoxyl-4-hydroxyphenylglycol-8″)-feruloylajugol (3), tetra-cosanoic acid 2,3-dihydroxypropyl ester (4), and galactitol (5). Conclusion All the compounds have been isolated from this plant for the first time. Compounds 1, 2 and 3 have protective effect agains MPP~+-induced apoptosis.