(1R,4R,5R)-1',3'-bis[(1S)-1-phenylethyl]spiro[bicyclo[2.2.1]hept-2-ene-5,5'-imidazolidine]-2',4'-dione 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
反应 3.0h,
以100%的产率得到(1S,2R,4R)-1',3'-bis[(1S)-1-phenylethyl]spiro[bicyclo[2.2.1]heptane-2,5'-imidazolidine]-2',4'-dione