Zhang, X., Zhou, X., L.Kisliuk, R., Piraino, J., Cody, V., & Gangjee, A. (2011). Design, synthesis, biological evaluation and X-ray crystal structure of novel classical 6,5,6-tricyclic benzo[4,5]thieno[2,3-d]pyrimidines as dual thymidylate synthase and dihydrofolate reductase inhibitors.

Zhang, Xin, Xilin Zhou, Roy L.Kisliuk, Jennifer Piraino, Vivian Cody, and Aleem Gangjee. Design, Synthesis, Biological Evaluation and X-ray Crystal Structure of Novel Classical 6,5,6-tricyclic Benzo[4,5]thieno[2,3-d]pyrimidines As Dual Thymidylate Synthase and Dihydrofolate Reductase Inhibitors. 2011.

Zhang, Xin, et al. Design, Synthesis, Biological Evaluation and X-ray Crystal Structure of Novel Classical 6,5,6-tricyclic Benzo[4,5]thieno[2,3-d]pyrimidines As Dual Thymidylate Synthase and Dihydrofolate Reductase Inhibitors. 2011.