9-methyl-3-(trimethoxymethyl)-2H-pyrido[3,4-b]indol-1-one

N-(2-oxopentyl)benzamide

N-(1-chloro-2-oxopentyl)benzamide

2-benzamido-3-thiophen-3-ylprop-2-enoic acid

2-benzamido-3-(5-methylthiophen-2-yl)prop-2-enoic acid