Two new compounds from the flowers of Rhododendron molle / 中国天然药物

AIM@#To study the chemical constituents of the flowers of Rhododendron molle.@*METHODS@#Compounds were isolated by repeated chromatography over silica gel and Sephadex LH-20. Structures were elucidated based on spectral techniques, mainly 1D- and 2D-NMR and mass spectrometric analyses.@*RESULTS@#Two compounds (1 and 2) were isolated.@*CONCLUSIONS@#Compounds 1 and 2 were identified as two new compounds: 2α, 10α-epoxy-3β, 5β, 6β, 14β, 16α-hexahydroxy-grayanane and benzyl 2, 6-dihydroxybenzoate-6-O-α-L-rhamnopyranosyl-(1→3)-β-D-glucopyranoside, respectively.