4-Amino-1-ethyl-1 H-pyrazole-3-carboxylic acid ethyl ester

4-Amino-1-ethyl-1H-pyrazole-3-carboxylic Acid Ethyl Ester is used as a reactant in the synthetic preparation and structure-activity relationships of 1-ethylpyrazole-3-carboxamide compounds as novel hypoxia-inducible factor (HIF)-1 inhibitors.