发明人赵玉洁,张德明,杨光. "Method for the Synthesis of tert-Butyl 4-amino-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 111362747 A, 授权公告日 2023-06-24.
发明人马晓峰,冯建国,沈红梅. "A Process for Preparing High-Purity tert-Butyl 4-amino-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 112059839 B, 授权公告日 2016-02-24.
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