propyl 2-amino-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate

isopropyl 2-amino-5-[(diethylamino)carbonyl]-4-methylthiophene-3-carboxylate

ethyl 2-amino-4-(2,4-dichlorophenyl)thiophene-3-carboxylate

ethyl 2-amino-4-(2,5-dimethylphenyl)thiophene-3-carboxylate

propyl 2-amino-4-(2,5-dimethylphenyl)thiophene-3-carboxylate

propyl 2-amino-4-(4-cyclohexylphenyl)thiophene-3-carboxylate

isopropyl 2-amino-4-phenylthiophene-3-carboxylate

isopropyl 2-amino-4-(3,4-dichlorophenyl)thiophene-3-carboxylate

methyl 2-amino-4-(4-sec-butylphenyl)-5-methylthiophene-3-carboxylate

ethyl 2-amino-4-(4-sec-butylphenyl)-5-methylthiophene-3-carboxylate

isopropyl 2-amino-4-(4-tert-butylphenyl)-5-methylthiophene-3-carboxylate