2-(4-Oxo-6-propyl-4 H -thieno[2,3- d ]pyrimidin-3-yl)-propionic acid hydrazide

1-(4-Fluoro-benzyl)-piperidine-3-carboxylic acid hydrazide

2-(2,4-Difluoro-phenoxymethyl)-benzoic acid hydrazide

1-(3-Nitro-[1,2,4]triazol-1-ylmethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

1-(2-Chloro-5-methyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

1-(3,5-Dimethyl-pyrazol-1-ylmethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

2-(4-Nitro-pyrazol-1-yl)-propionic acid hydrazide

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

5-Methyl-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid hydrazide

4-Chloro-2-ethyl-2 H -pyrazole-3-carboxylic acid hydrazide

3-[(2,4-Difluorophenoxy)methyl]benzohydrazide