ethyl 3-(butylamino)but-2-enoate

1-butyl-3-methylpyrrole

N-butyldecanamide

ethyl 2-(3-butyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-yl)acetate

N-[[ethoxy(dimethyl)silyl]methyl]butan-1-amine