7-benzyloxy-3,4-dihydro-2H-quinoline-1-carboxylic acid benzyl ester-4-spiro-5'-3'-(2-methyl-prop-1-yl)-imidazolidine-2',4'-dione 、
碘甲烷 在
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
以99%的产率得到7-benzyloxy-3,4-dihydro-2H-quinoline-1-carboxylic acid benzyl ester-4-spiro-5'-3'-(2-methylprop-1-yl)-1'-methyl-imidazolidine-2',4'-dione