Flavonoids and Triterpenoids from the Roots of Rosa laevigata
DOI:
https://doi.org/10.29356/jmcs.v58i4.45Keywords:
Rosa laevigata, flavonoids, triterpenoids, DPPH radical scavenging activityAbstract
Phytochemical investigation on the root of R. laevigata led the isolation and identification of two new flavonoids, (+)-catechin-8-acetic acid (1) and guibourtacacidine 4-methyl ether (2), one known flavonoid, guibourtacacidine (3), along with seven known triterpenoids, euscaphic acid (4), kajiichigoside F1 (5), nigaichigoside F2 (6), rubuside J (7), tomentic acid (8), rosamutin (9) and betulinic acid (10). Their structures were established on the basis of spectroscopic evidence and comparisons with literature data. Compounds 1, 2 and 3 showed considerable radical scavenging activity in the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) assay.
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