发明人冯建国,何建平,孙丽萍. "一种trans-2,2′-二吡咯烷草酸盐的合成方法" [P]. 中国发明专利, 专利号 CN 111991746 A, 授权公告日 2015-02-12.
Kowalski A, Jørgensen K, Björnsson E. "Method for the Synthesis of rel-(R,S)-2,2'-Bipyrrolidine sesquioxalate salt" [P]. European Patent, EP 3346889 A1, 2015-08-10.
发明人朱建伟,沈红梅,王建平. "A Process for Preparing High-Purity rel-(R,S)-2,2'-Bipyrrolidine sesquioxalate salt" [P]. 中国发明专利, 专利号 CN 112062943 A, 授权公告日 2024-12-22.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of trans-2,2′-二吡咯烷草酸盐 in Pharmaceutical Formulations". Anal. Methods, 2016, 2274, (2), 7949-7963.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of trans-2,2′-二吡咯烷草酸盐 as an Impurity". Environ. Sci. Technol., 2014, 2177, (3), 2417-2440.