Chemical constituents of Acer tegmentosum Maxim and their chemotaxonomic significance

A phytochemical study of Acer tegmentosum Maxim (the dried stem bark of Acer tegmentosum Maxim) led to the isolation of 28 compounds, including thirteen phenols, five coumarins, four benzoate esters, three tetracyclic triterpenoids, one carbohydrate, one hydrocarbon and one lignan. The structures of these isolated compounds were identified using NMR spectroscopy (1H and 13C) by comparison with previously reported data. To the best of our knowledge, salidroside, 2-(4-Hydroxyphenyl)ethyl β-d-galactopyranoside, 2-(4-hydroxyphenyl)ethyl 3,4,5-trihydroxybenzoate, 3,3´,4,4´-tetrahydroxybiphenyl, (4-methoxyphenyl)acetic acid, daphnetin, 5,6,7-trimethoxycoumarin, 1,2-bis(2-methylheptyl) 1,2-benzenedicarboxylate, 1,4-benzenedicarboxylic acid, periplocoside N and 3,4-dimethoxycinnamyl alcohol were reported from this plant for the first time. Chemotaxonomic significance was discussed. [Display omitted] •The chemical constituents from Acer tegmentosum Maxim was investigated.•Twenty-eight compounds were purified and identified mainly by means of NMR tools.•The chemotaxonomy significance was discussed.