Dipropyl butylphosphonate

N-butyl-4-methoxyaniline

1-(4-butoxyphenyl)sulfanyl-4-nitrobenzene

3-(butylamino)-5-(hydroxymethyl)-2-phenoxybenzenesulfonamide

3-(butylamino)-5-(hydroxymethyl)-2-phenylsulfanylbenzenesulfonamide