1 J25 Diethyl 2-[(thiophen-2-ylacetyl)amino]-4,7-dihydrothieno[2,3-C]pyridine-3,6(5h)-dicarboxylate 1.000 2 JN7 3-cyclopentyl 6-ethenyl 2-[(thiophen-2-ylacetyl)amino]-4,7-dihydrothieno[2,3-C]pyridine-3,6(5h)-dicarboxylate 0.788 3 JN4 Ethenyl 6-(ethenylcarbamoyl)-2-[(phenylacetyl)amino]-4,5,6,7-tetrahydrothieno[2,3-C]pyridine-3-carboxylate 0.727