ethyl 2-((2-(4-(furan-2-carbonyl)piperazin-1-yl)acetyl)amino)-5,6-dihydro-4H-cyclopenta(b)thiophene-3-carboxylate
ethyl 2-((2-(4-(furan-2-carbonyl)piperazin-1-yl)acetyl)amino)-5,6-dihydro-4h-cyclopenta(b)thiophene-3-carboxylate