ethyl (R)-2-(2-amino-5-fluorobenzoylamino)propionate 在
silica gel 、
乙酸乙酯 作用下,
以
溶剂黄146 为溶剂,
反应 19.0h,
以to give (R)-7-fluoro-3-methyl-3,4-dihydro-1H-benzo[e]-1,4-diazepin-2,5-dione (0.340 g)的产率得到(R)-7-fluoro-3-methyl-3,4-dihydro-1H-benzo[e]-1,4-diazepin-2,5-dione