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

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

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

3-(4-Chloro-phenyl)-[1,2,4]oxadiazole-5-carboxylic acid ethyl ester

3-(4-Chloro-3-nitro-pyrazol-1-yl)-propionic acid ethyl ester

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

1-(4-Fluoro-benzenesulfonyl)-piperidine-3-carboxylic acid ethyl ester

1- o -Tolyloxymethyl-1 H -pyrazole-3-carboxylic acid methyl ester

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

5-(1-Bromo-naphthalen-2-yloxymethyl)-furan-2-carboxylic acid methyl ester

1-(Biphenyl-4-yloxymethyl)-1 H -pyrazole-3-carboxylic acid methyl ester