Simultaneous determination of oleanolic acid and ursolic acid by RP-HPLC in the leaves of Eriobotrya japonica Lindl.

by Xiao-Hong Xu, Qing Su, Zhi-He Zang
Published 2012-06-01

(25R)-5a-Spirostane-3,12-dione

by Ling-Li Zheng, Ming-Yong Yuan, Zhi-He Zang, Tie-Ying Zi
Published 2009-02-01