Qiang Wang, Fang Xu
Mar 1, 2013
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Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials
Abstract
OBJECTIVE To study the constituents of EtOAc extract from Aeschynanthus bracteatus. METHODS The constituents were isolated and purified by chromatography on silica gel and the structures of the compounds were determined by MS and NMR spectral analysis. RESULTS On the basis of spectroscopic analysis and comparison with the reported data, compounds were identified as koaburaside (1), coniferaldehyde (2), syringaldehyde (3), sinapinaldehyde (4), 2,4'-dihydroxyacetophenone (5), piceol (6), beta-daucosterol (7), beta-sitosterol (8). CONCLUSION Compounds 1 and 2 are obtained from this genus for the first time.