SYNTHESIS, SPECTRAL AND MOLECULAR CHARACTERIZATION OF SOME NOVEL 2, 5-DISUBSTITUTED-1, 3, 4–OXADIAZOLE DERIVATIVES AND EVALUATION OF IN VIVO ANTITUMOUR ACTIVITY AGAINST HT 29 CELL LINE Journal title: International Journal of Pharmaceutical Sciences and Drug Research Authors: Asish Bhaumik, M. Chinna Eswaraiah, Raja Chakraborty Subject(s):