4-Amino-5-pyridin-3-yl-4 H -[1,2,4]triazole-3-thiol

6-Bromo-3H-isobenzofuran-1-one

6-溴-3H-异苯并呋喃-1-酮

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

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

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

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

7-Chloromethyl-5-oxo-4,5-dihydro-pyrazolo[1,5- a ]pyrimidine-3-carboxylic acid ethyl ester

3- p -Tolyl-[1,2,4]oxadiazole-5-carboxylic acid ethyl ester

2-(3-Difluoromethyl-5-methyl-pyrazol-1-yl)-propionic acid ethyl ester

4-Bromo-1-ethyl-1 H -pyrazole-3-carboxylic acid methyl ester

4-(1,5-Dimethyl-1 H -pyrazol-4-yl)-2,4-dioxo-butyric acid methyl ester