5-(3,5-difluorophenyl)-1,3,4-thiadiazol-2-amine

5-chloro-3-ethyl-1,2,4-thiadiazole

5-chloro-3-[(4-nitrophenyl)methyl]-1,2,4-thiadiazole

5-chloro-3-(3-nitrophenyl)-1,2,4-thiadiazole

5-chloro-3-[(2,6-dichlorophenyl)methyl]-1,2,4-thiadiazole

1-(3-ethyl-1,2,4-thiadiazol-5-yl)piperazine

1-{3-[(3-fluorophenyl)methyl]-1,2,4-thiadiazol-5-yl}piperazine

1-{3-[(4-nitrophenyl)methyl]-1,2,4-thiadiazol-5-yl}piperazine

1-{3-[(4-methylphenyl)methyl]-1,2,4-thiadiazol-5-yl}piperazine

1-[3-(4-fluorophenyl)-1,2,4-thiadiazol-5-yl]piperazine

1-[3-(2-methoxyethyl)-1,2,4-thiadiazol-5-yl]piperazine