Previous experiments showed that triterpenoid saponins of Guangdong Liangcha were mainly from the roots of ilex asprella and Rosa laevigata Michx.. However

chemical constituents mainly focus on leaves and fruits of Rosa laevigata Michx.

and the secondary metabolites from the roots of Rosa laevigata Michx. were very few published. So

on the basis of previous study

six compounds were isolated from the roots of Rosa laevigata Michx. by various chromatographic techniques and their structures were identified by spectroscopic analysis and literature confrontation method

such as 2α

3α

19α-trihydroxyurs-12-en-28-oic acid β-D- glucopyranosyl ester(1)

2α

3β

19α-trihydroxyurs-12-en-28-oic acid β-D-glucopyranosyl ester (2)

2α

3β

19α

23-tetrahydroxyurs-12-en-28-oic acid β-D-glucopyranosyl ester(3)

oleanolic acid(4)

ursolic acid(5)

(+)-catechin(6). Compounds 1，2，3 as triterpenoid saponins in Guangdong Liangcha have been firstly obtained from the roots of Rosa laevigata Michx..