3-Phenyl-[1,2,4]oxadiazole-5-carboxylic acid hydrazide

2-(5-Methyl-3-nitro-pyrazol-1-yl)-propionic acid hydrazide

(5-Phenyl-tetrazol-2-yl)-acetic acid hydrazide

1-(2,5-Dimethyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

1-Phenoxymethyl-1 H -pyrazole-3-carboxylic acid hydrazide

[4-(4-Methoxy-phenyl)-pyrimidin-2-ylsulfanyl]-acetic acid hydrazide

3-(4-Cyano-phenoxymethyl)-benzoic acid hydrazide

4-Nitro-1 H -pyrazole-3-carboxylic acid hydrazide

5-(4-Fluoro-phenyl)-7-pentafluoroethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid hydrazide

2-Methyl-2 H -pyrazole-3-carboxylic acid hydrazide

o -Tolyloxy-acetic acid hydrazide