4-Amino-5-ethyl-4 H -[1,2,4]triazole-3-thiol

3-Amino-2-mercapto-3 H -quinazolin-4-one

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

(4-Bromo-pyrazol-1-yl)-acetic acid hydrazide

(3-Trifluoromethyl-pyrazol-1-yl)-acetic acid hydrazide

1-(2-Chloro-4-nitro-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

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

1-(4-Bromo-pyrazol-1-ylmethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

1-(3-Trifluoromethyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

3-(4-Bromo-pyrazol-1-yl)-2-methyl-propionic acid hydrazide

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