Diversity of chemical constituents from Saxifraga montana H.

A thorough phytochemical investigation of the whole plant of Saxifraga montana H. afforded a new glucoside, methyl 6 ''-O-(E)-p-hydroxycinnamoxyl-glucosyringate (1), and seventeen known natural products, 3-methyl-6-methoxy-3,4-dihydroisocoumarin-beta-O-beta-D-glucospyranoside (2), gallic acid (3), glucosyringic acid (4), daphnoretin (5), chamaejasmoside (6), myricetin (7), quercetin (8), quercetin-3-O-beta-D-galactopyranoside (9), quercetin-3-O-alpha-L-arabinoside (10), quercetin-3-O-beta-D-glucospyranoside (1]), rutin (12), quercetin-3-O-beta-D-glucopyranosyl (6-1) glucopyranoside (13), ursolic acid (14), 5,28-stigmastadien-3 beta-ol (15), beta-sitosterol (16), beta-daucosterin (17), 6'-palmitoxyl-beta-daucosterin (18). On the: basis of various spectroscopic methods, especially intensive 2D-NMR (COSY, HMQC and HMBC), FAB-MS and HR-ESI-MS techniques, their structures were elucidated.