[Chemical constituents from herbs of Swertia delavayi].

OBJECTIVE

To isolate and identify the chemical constituents of 95% alcohol extract from Swertia delavayi.

METHOD

The compounds were isolated and purified by column chromatogrphy and their structures were identified by the physicochemical properties and spectral analyses.

RESULT

Seven compounds were isolated and identified as oleanolic acid (1), gentiopcroside (2), swertiamarin (3), daucosterol (4), swertiadecoraxanthone-II (5), isovitexin (6), isoorientin (7).

CONCLUSION

Compounds 2-7 were isolated from S. delavayi for the first time. While the compound 6 was firstly reported from the genus Swertia.