Synthesis and Anti-tumor Activity Evaluation of a Series of 2- or 4-Substituted Pyrido[3,2-d]pyrimidines as Nonclassical Antifolates †
FANG Fang,XUE Liangmin,CONG Jing,TIAN Chao,WANG Xiaowei,LIU Junyi,ZHANG Zhili
Chem. J. Chinese Universities . 2019, (10): 2111 -2120 .  DOI: 10.7503/cjcu20190108