Fischer A B, Anderson J P, Stevens L M. "一种7-甲氧基-2-氧代螺[二氢吲哚-3,3'-吡咯烷]-1'-羧酸叔丁酯的合成方法" [P]. US Patent, US 11569316 B2, 2021-10-14.
发明人冯建国,郭海燕,马晓峰. "Method for the Synthesis of tert-Butyl 7-methoxy-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 115785657 A, 授权公告日 2017-12-11.
发明人刘建华,马晓峰,赵玉洁. "A Process for Preparing High-Purity tert-Butyl 7-methoxy-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 110093518 B, 授权公告日 2015-02-14.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 7-甲氧基-2-氧代螺[二氢吲哚-3,3'-吡咯烷]-1'-羧酸叔丁酯 in Pharmaceutical Formulations". J. Nat. Prod., 2010, 1586, 6988-6992.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 7-甲氧基-2-氧代螺[二氢吲哚-3,3'-吡咯烷]-1'-羧酸叔丁酯 as an Impurity". Molecules, 2024, 572, (9), 5691-5696.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 7-methoxy-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 1421, (10), 5256-5269.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate 7-甲氧基-2-氧代螺[二氢吲哚-3,3'-吡咯烷]-1'-羧酸叔丁酯 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2021, 1662, 3231-3246.