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

To study the chemical constituents of Viscum liquidambaricolum Hayata.

Various chromatographic techniques were used to separate and purify the compounds. Their spectral data (MS,IR,NMR) were measured for structure identification.

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).

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.