(5aS,10bR)-3-acetoxy-3-methyl-3a,4,5a,10b-tetrahydro-3H,6H-indeno[2,1-b]oxazolo[3,4-d][1,4]oxazin-11-ium perchlorate 、
4-溴-2,6-二甲基苯胺 以
甲苯 为溶剂,
反应 13.0h,
以300 mg的产率得到(5aS,10bR)-2-(4-bromo-2,6-dimethylphenyl)-3-hydroxy-3-methyl-3a,4,5a,10b-tetrahydro-3H,6H-imidazo[1,5-d]indeno[2,1-b][1,4]oxazin-2-ium perchlorate