N-[(2Z)-3-butyl-5,5-dimethyl-1,3-thiazolidin-2-ylidene]-5-chloro-2-methoxybenzamide

dimethyl 3-(N-butylacetamido)-1,4-dimethyl-5H-cyclopenta[c]pyridine-6,6(7H)-dicarboxylate

dimethyl 3-[(butyl)(2-methoxy-2-oxoethyl)amino]-1,4-dimethyl-5Hcyclopenta[c]pyridine-6,6(7H)-dicarboxylate

dimethyl 3-(N-butylacetamido)-5,7-dihydro-6H-cyclopenta[c]pyridine-6,6-dicarboxylate