发明人刘建华,冯建国,韩伟. "一种5-溴-2-氧代螺[吲哚啉-3,3'-吡咯烷]-1'-羧酸叔丁酯的合成方法" [P]. 中国发明专利, 专利号 CN 115407385 A, 授权公告日 2015-04-08.
Jørgensen K, Mueller T C, Rossi M. "Method for the Synthesis of tert-Butyl 5-bromo-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. European Patent, EP 3962420 A1, 2020-07-05.
Brown S R, Chen K W, Stevens L M. "A Process for Preparing High-Purity tert-Butyl 5-bromo-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. US Patent, US 9780878 B2, 2016-06-27.
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