Synthesis of 2,5(6)-Disubstituted-benzimidazoles, 2-Substituted-5-(4-substituted-phenyl)-1,3,4-thiadiazoles and Imidazothioxanthene and Their Antifilarial Activity
2-Carbomethoxyaminothioxanthenoimidazol-12-one-13,13-dioxide (5), 2,5(6)-disubstituted-benzimidazoles (10-13) and 2-substituted-5-(3-nitro-4-substituted-phenyl)-1,3,4-thiadiazoles (18-24) have been synthesized and evaluated for their antifilarial a