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

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

2-Allylamino-4-trifluoromethyl-thiazole-5-carboxylic acid ethyl ester

2,4-Dioxo-4-(1,3,5-trimethyl-1 H -pyrazol-4-yl)-butyric acid methyl ester

5-(1-Ethyl-5-methyl-1 H -pyrazol-4-yl)-isoxazole-3-carboxylic acid methyl ester

(2-Methyl-4-nitro-imidazol-1-yl)-acetic acid ethyl ester

1-(Thiophene-2-sulfonyl)-piperidine-3-carboxylic acid ethyl ester

3-(1-Methanesulfonyl-3,5-dimethyl-1 H -pyrazol-4-yl)-propionic acid ethyl ester

3-(3-Methoxy-4-nitro-pyrazol-1-yl)-propionic acidethyl ester

2-(4-Nitro-pyrazol-1-yl)-butyric acid ethyl ester

1-(4-Chloro-2-methyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid methyl ester

1-(4-Bromo-2-chloro-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid methyl ester

5-(4-Chloro-phenyl)-1H-pyrazole-3-carboxylic acid methyl ester

(4-Chloro-3,5-dimethyl-pyrazol-1-yl)-acetic acid ethyl ester

1-(4-Chloro-3,5-dimethyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid methyl ester