3,4,5,6-四氢苯酐 、 ethyl 2-(6-amino-7-fluoro-2-methyl-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)-2-phenylacetate 在
溶剂黄146 作用下,
反应 3.5h,
以57%的产率得到Ethyl 2-[6-(1,3-dioxo-4,5,6,7-tetrahydroisoindol-2-yl)-7-fluoro-2-methyl-3-oxo-1,4-benzoxazin-4-yl]-2-phenylacetate