[Study on chemical constituents from flowers of Ailanthus altissima].

OBJECTIVE

To isolate and identify the chemical constituents from the flowers of Ailanthus altissima.

METHODS

Macroporous adsorptive resins (DM130), Silica gel, Sephadex LH-20, ODS were employed for the isolation and purification of chemical constituents. The structures were identified on the basis of spectral data and physicochemical examination.

RESULTS

Eight compounds were isolated and identified as follows: brevifolin (1), brevifolin carboxylic acid (2), methyl brevifolin carboxylate (3), ellagic acid (4), diethyl-2,2',3,3',4,4'- hexahydroxybiphenyl-6,6'-dicarboxylate (5), rutin (6), gallic acid (7), ethyl gallate (8).

CONCLUSIONS

Compounds 1 -5 are isolated from this genus for the first time.