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

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

4-Furan-2-yl-2,4-dioxo-butyric acid methyl ester

2-Methyl-2-(4-nitro-pyrazol-1-yl)-propionic acid ethyl ester

2-(5-Methyl-pyrazol-1-yl)-propionic acid methyl ester

5-Thiophen-2-yl-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-3-carboxylic acid ethyl ester

5-Naphthalen-2-yl-7-trifluoromethyl-pyrazolo[1,5-a ]pyrimidine-3-carboxylic acid ethyl ester

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

4-Difluoromethoxy-3-methoxy-benzoic acid methyl ester

4-(3-Nitro-[1,2,4]triazol-1-ylmethyl)-benzoic acid methyl ester

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