An Investigation on Synthesis and Spectroscopic Properties of Hantzsch Type1,4-Dihydropyridine Derivatives
ZHAO Bing-Jun, ZHU Xiao-Qing, HE Jia-Qi, XIA Chi-Zhong, CHENG Jin-Pei 
Chem. J. Chinese Universities . 1999, (11): 1733 -1737 .