ethyl 3-oxo-3-(phenylcarbonyl)pentanoate 、
2-肼吡啶 以
溶剂黄146 为溶剂,
反应 3.0h,
以5.0 grams 3-methyl-5-phenyl-1-(2-pyridyl)-pyrazol-4-acetic acid ethyl ester, melting at 89°-90° C., were obtained的产率得到(3-methyl-5-phenyl-1-pyridin-2-yl-1
H-pyrazol-4-yl)-acetic acid ethyl ester