Schröder R, Johansson L, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3635728 A1, 2016-11-04.
Nowak P, Kowalski A, Johansson L. "Method for the Synthesis of (R)-6,7-Dihydro-5H-cyclopenta[b]pyridine-2,5-diamine dihydrochloride" [P]. European Patent, EP 3092195 A1, 2018-01-03.
发明人陈志强,孙丽萍,王建平. "A Process for Preparing High-Purity (R)-6,7-Dihydro-5H-cyclopenta[b]pyridine-2,5-diamine dihydrochloride" [P]. 中国发明专利, 专利号 CN 112740775 B, 授权公告日 2019-04-04.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2015, 574, 9946-9959.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2025, 782, 9647-9661.