(1R*,2R*,5S*)-ethyl 3'-isopropyl-2',3-dioxo-8H-spiro[8-azabicyclo[3.2.1]octane-2,5'-[1,3]oxazolidine]-8-carboxylate 以
甲醇 为溶剂,
35.0 ℃
、10.0 MPa
条件下,
以50 mg的产率得到(1R,2R,5S)-ethyl 3'-isopropyl-2',3-dioxo-8H-spiro[8-azabicyclo[3.2.1]octane-2,5'-[1,3]oxazolidine]-8-carboxylate