(R)-5',5'-difluoro-7-nitro-3,4,5',6'-tetrahydro-2H-spiro[naphthalene-1,4'-[1,3]oxazin]-2'-amine 在
palladium 10% on activated carbon
氢气 作用下,
以
乙醇 为溶剂,
反应 1.5h,
以58%的产率得到(R)-5',5'-difluoro-3,4,5',6'-tetrahydro-2H-spiro[naphthalene-1,4'-[1,3]oxazine]-2',7-di amine