2-[(4-Bromo-2-fluorophenyl)methyl]-6-fluoro-1,2,3,4-tetrahydro-4-(methoxycarbonyl)-1,3-dioxo-4-isoquinolineacetic Acid 1,2-Dimethylhydrazide 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 0.33h,
生成 2-[(4-bromo-2-fluorophenyl)methyl]-6-fluoro-1',2'-dimethylspiro[isoquinoline-4(1H),4'(1'H)-pyridazine]-1,3,3',6'(2H,2'H,5'H)-tetrone