首页|5-Methoxypropacin, a novel coumarinolignoid from Protium unifoliolatum.
5-Methoxypropacin, a novel coumarinolignoid from Protium unifoliolatum.
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NSTL
The novel coumarinolignoid 5-methoxypropacin was isolated from the ethereal extract of the wood of the Amazonian species Protium unifoliolatum. Its structure was elucidated by spectroscopic methods as IR, 1D and 2D (1)H, (13)C-NMR and mass spectrometry. The regioisomer and the position of coumarin and arylpropanoid coupling were determined by long-distance C-H correlation (HMBC) and NOE experiments. Scopoletin and beta-sitosterol were also isolated and identified by the same physical methods.
BurseraceaeCoumarins香豆素类
Magalhaes A、Zoghbi MD、Siani AC
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Laboratorio de Quimica de Produtos Naturais, Instituto de Tecnologia em Farmacos, FIOCRUZ, R. Sizenando Nabuco 100, 21041-250 Rio de Janeiro, RJ, Brazil.
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