CJCU
Studies on the Synthesis and Anticancer Activity of N-Carbamoyl-N'-(1-Oxyl-2,2,5,5-Tetramethyl-Pyrrolin-3-yl)Urea Compounds
Zhang Ziyi, Wei Lulin, Liu Lisheng, Zheng Rongliang
Chem. J. Chinese Universities . 1989, (12): 1202 -1207 .