Ethyl carbazate ?? ???? ?????? ???? ?? ???

1,2,3-?????-4-?????

5-AMINO-1,2,3-THIADIAZOLE-4-CARBOXYLIC ACID ETHYL ESTER ETHYL 1,2,3-THIADIAZOLE-4-CARBOXYLATE 5-AMINO-1,2,3-THIADIAZOLE-N-PHENOXYCARBONYL-4-CARBOXYLIC ACID ETHYL ESTER Ethyl 5-chloro-1,3,4-thiadiazole-2-carboxylate ETHYL 4-METHYL-1,2,3-THIADIAZOLE-5-CARBOXYLATE 1,2,3-THIADIAZOLE-4-CARBOXYLIC ACID ETHYL 5-[(4-METHYLPHENYL)SULFANYL]-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 5-[(4-CHLOROPHENYL)SULFANYL]-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 1,2,3-THIADIAZOLE-5-CARBOXYLATE ETHYL 4-ISOPROPYL-1,2,3-THIADIAZOLE-5-CARBOXYLATE ETHYL 4-PHENYL-1,2,3-THIADIAZOLE-5-CARBOXYLATE ETHYL 5-{[(PYRIDIN-4-YLAMINO)CARBONYL]AMINO}-1,2,3-THIADIAZOLE-4-CARBOXYLATE ISOPROPYL 5-[(4-CHLOROPHENYL)SULFANYL]-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 5-(DIMETHYLAMINO)-1,2,3-THIADIAZOLE-4-CARBOXYLATE CYCLOHEXYL 5-[(4-CHLOROPHENYL)SULFONYL]-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 5-[(2E)-2-BENZYLIDENEHYDRAZINO]-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 5-(FORMYLAMINO)-1,2,3-THIADIAZOLE-4-CARBOXYLATE ETHYL 5-{[(CYCLOHEXYLAMINO)CARBONYL]AMINO}-1,2,3-THIADIAZOLE-4-CARBOXYLATE