N. Shirole, G. Talele, R. Fursule, S. Surana, and K. Jain, “Synthesis and Antihistaminic Activity of Novel 2-Alkylamino and 2-Dialkylaminomethylthieno[2,3-d]pyrimidines”, ajc, vol. 18, no. 4, pp. 2673–2679, Mar. 2010.