CJCU
Synthesis and Structure of Tetrahydroimidazo[2,1-a]- 2,3-diphenyl-1, 4-diazo-3-cyclohexene
LIN Zhen-Guang, ZHUANG Hong-Hui, LU Can-Zhong
Chem. J. Chinese Universities . 1993, (11): 1547 -1550 .