4-(1,3-Dimethyl-1 H -pyrazol-4-yl)-2,4-dioxo-butyric acid methyl ester

(5-Cyclopropyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid ethyl ester

3-(5-Methyl-3-nitro-pyrazol-1-yl)-propionic acid methyl ester

5-(2,3,5,6-Tetrafluoro-phenoxymethyl)-furan-2-carboxylic acid methyl ester

2- p -Tolyl-cyclopropanecarboxylic acid ethyl ester

(3-Nitro-pyrazol-1-yl)-acetic acid ethyl ester

4-(2-Butyl-cyclopropyl)-butyric acid ethyl ester

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

4-(4-Ethyl-phenoxymethyl)-benzoic acid methyl ester

5-(4-Chloro-3,5-dimethyl-pyrazol-1-ylmethyl)-furan-2-carboxylic acid methyl ester

5-(2-Nitro-phenoxymethyl)-furan-2-carboxylic acidmethyl ester