7-溴-2-(氯甲基)-4H-吡啶并[1,2-a]嘧啶-4-酮

N-[4-(chloromethyl)-2-oxochromen-7-yl]acetamide

ethyl 6-(chloromethyl)-4-(4-methoxyphenyl)-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate

diethyl 2-((2-ethoxy-4-oxo-4,5-dihydrofuran-3-yl)(phenyl)methyl)malonate