4-hydroxy-6-methyl-6-(1-phenylsulfanylbutyl)-3H-pyran-2-one

N,N-dibutyl-4-nitroaniline

2-[(2-hydroxy-5-nitrophenyl)methylidene]butanal

1,1-bis(2-methylprop-2-enoxy)butane

N-(butylideneamino)aniline