3-(4-Bromo-pyrazol-1-ylmethyl)-benzoic acid hydrazide

6-Chloro-7-nitro-3 H -isobenzofuran-1-one

4-(2,5-Dimethoxy-phenyl)-2-oxo-2,3-dihydro-thiazole-5-carboxylic acid ethyl ester

2- sec -Butylamino-4-trifluoromethyl-thiazole-5-carboxylic acid ethyl ester

4-Methyl-2-propylamino-thiazole-5-carboxylic acidethyl ester

7-Cyclopropyl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid methyl ester

6-Chloromethyl-2-oxo-4-phenyl-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester

7-Trifluoromethyl-pyrazolo[1,5- a ]pyrimidine-3-carboxylic acid ethyl ester

(5,6-Dimethyl-4-oxo-4 H -thieno[2,3- d ]pyrimidin-3-yl)-acetic acid ethyl ester

3-(4-Bromo-3,5-dimethyl-pyrazol-1-yl)-propionic acid methyl ester

5-p-Tolyl-1H-pyrazole-3-carboxylic acid methyl ester