Synthesis of Allobetulin, 28-Oxyallobetulin and Related Biomarkers from Betulin and Betulinic Acid Catalysed by Solid Acids

Jian-Xin Wang, Tong-Shuang Li, Xue-Jing Zheng

Chem. J. Chinese Universities . 1998, (S1): 99 -100 .