STUDIES ON THE ACTIVE PRINCIPLES OF MAYTENUS HOOKERILOES Ⅰ. ISOLATION AND CHARACTERIZATION OF TWO ANTITUMOR PRINCIPLES——MAYTANSINE AND MAYTANPRINE
ZHOU YUN-LI, HUANG LI-YING, ZHOU QIAN-RU, JIANG FU-XIANG, HE XIAN-GUO, LI CHAO-MING, WANG CHUN, LI BING-JUN
Acta Chimica Sinica . 1981, (5): 427 -432 .