Alagarsamy V., Shankar D., Raja Solomon V., Parthiban P, Hanish Singh J.C. Synthesis of 4-(2-ethylphenyl)-1-substituted[1,2,4] triazoloquinazolin-5(4H)-ones for their H1-Antihistamine Activity DOI: https://doi.org/10.37285/ijddd.1.1.6