3-[3-(4-Nitro-phenyl)-ureido]-propionic acid

2-Methyl-4-chlorphenylisocyanide

4-(2-Methoxyethyl)-piperazino-isocyano-acetamide

4-(2-dimethylamino)-piperazino-isocyano-acetamide

4-Bromo-2-methyl-phenyl isocyanide

2-Nitro-4-methoxyphenyl isocyanide

3,5-Dimethyl-phenyl isocyanide

2-tert-Butyl-phenyl isocyanide

2-Phenoxyphenylisocyanide

1,3-Diethyl-2-isocyano-benzene

2-Bromo-4,5-difluorobenzoyl chloride