[Isolation and structure identification of chemical constituents from Viscum liquidambaricolum].

AIM: To study the chemical constituents of Viscum liquidambaricolum Hayata. METHODS: Various chromatographic techniques were used to separate and purify the compounds. Their spectral data (MS,IR,NMR) were measured for structure identification. RESULTS: Five compounds were isolated from Viscum liquidambaricolum and their structures were identified as trans-cinnamic acid (I), oleanolic acid (II), chrysin (III), eriodictyol (IV) and liquidamboside (V). CONCLUSION: Liquidamboside (V) is a new compound, the known compounds I - IV were isolated from this plant for the first time, I, III, IV were isolated from Loranthaceae for the first time.