N-(2-ethoxycarbonylethyl)-2-nitro-3-hydroxy-4-methyl-benzamide
N-(5-ethoxycarbonyl)-2-nitro-3-hydroxy-4-methylbenzamide
3-(3-Hydroxy-4-methyl-2-nitro-benzoylamino)-propionyl azide
N-<2-<(1-deoxy-D-sorbitolyl)(methyl)carbamoyl>ethyl>2-nitro-3-benzyloxy-4-methylbenzamide
N-<2-(1-deoxy-D-sorbitolylcarbamoyl)ethyl>-2-nitro-3-benzyloxy-4-methylbenzamide