%0 Journal Article
%T Three new triterpenoids from Rubia schumanniana
%A Bin Kuang
%A Jing Han
%A Guang-Zhi Zeng
%A Xiao-Qiang Chen
%A Wen-Jun He
%A Ning-Hua Tan
%J Natural Products and Bioprospecting
%@ 2192-2209
%D 2012
%I Springer
%R 10.1007/s13659-012-0038-8
%X Three new triterpenoids, 3¦Â-hydroxy-urs-30-p-Z-hydroxycinnamoyl-12-en-28-oic-acid (1), 3¦Â-hydroxy-olean-30-p-Ehydroxycinnamoyl-12-en-28-oic-acid (2) and 3¦Â,6¦Á-dihydroxy-urs-14-en-12-one (3), together with seven known triterpenoids, were isolated from the roots of Rubia schumanniana. Their structures were established by means of spectroscopic analysis. All compounds were evaluated for cytotoxic activity, and compounds 2¨C6 showed cytotoxicity with the IC50 values of 10.75¡«18.87 ¦Ìg/mL.
%K Rubia schumanniana
%K triterpenoid
%K cytotoxicity
%U http://link.springer.com/article/10.1007/s13659-012-0038-8