发明人马晓峰,周伟,冯建国. "Method for the Synthesis of Tert-butyl 4-(2'-oxospiro[cyclohexane-1,3'-indolin]-1'-yl)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 114965216 A, 授权公告日 2023-09-22.
发明人钱学锋,张德明,何建平. "A Process for Preparing High-Purity Tert-butyl 4-(2'-oxospiro[cyclohexane-1,3'-indolin]-1'-yl)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 109401617 A, 授权公告日 2024-12-23.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2021, 1737, 3068-3081.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2020, 981, 8197-8227.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 4-(2'-oxospiro[cyclohexane-1,3'-indolin]-1'-yl)piperidine-1-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2013, 325, (2), 7591-7599.