3-(N-benzyl-N-methylaminomethyl)-7-(2,6-difluorobenzyl)-4,7-dihydro-5-isobutyryl-2-(4-trifluoroacetamidophenyl)-4-oxothieno[2,3-b]pyridine

ethyl N-[3-carboxy-4-methyl-5-phenyl-2-thienyl]aminomethylenemalonate

diethyl 2-(((3-(ethoxycarbonyl)-4-methyl-5-phenylthiophen-2-yl)amino)methylene)malonate

3-(N-benzyl-N-methylaminomethyl)-7-(2,6-difluorobenzyl)-4,7-dihydro-N-methoxy-N-methyl-4-oxo-2-(4-trifluoroacetamidophenyl)thieno[2,3-b]pyridine-5-carboxamide

3-(N-benzyl-N-methylaminomethyl)-4,7-dihydro-7-(2,6-difluorobenzyl)-2-(4-trifluoroacetylaminophenyl)-4-oxothieno[2,3-b]pyridine-5-carboxylic acid ethyl ester