diethyl [(3,5-dichloro-phenylsulphonylamino)-methyl]-phosphonate
diethyl ({[(2S)-2-({[(4-bromophenyl)amino]carbonyl}amino)-4-methylpentanoyl]amino}methyl)phosphonate
diethyl [({[4-({[2-({[(1,1-dimethylethyl)oxy]carbonyl}amino)-5-(2-thienyl)phenyl]amino}carbonyl)phenyl]methyl}amino)methyl]phosphonate