反应详情

Following the procedure set forth in Preparation A, steps (2-3), isatoic anhydride was converted to 1-heptyl-4-hydroxy-3-ethoxycarbonyl-2(1H)-quinolinone, which upon reaction with excess diazomethane in ether gave the title compound. That the expected product was obtained was confirmed by the spectral data: MS: m/e 345 (M+).