Thompson G K, Kumar R, Fischer A B. "Method for the Synthesis of (R)-Hexahydro-1H-pyrido[1,2-a]pyrazin-4(6H)-one hydrochloride" [P]. US Patent, US 9866601 B2, 2020-02-05.
发明人王建平,何建平,赵玉洁. "A Process for Preparing High-Purity (R)-Hexahydro-1H-pyrido[1,2-a]pyrazin-4(6H)-one hydrochloride" [P]. 中国发明专利, 专利号 CN 115552444 A, 授权公告日 2023-09-10.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2024, 315, (1), 7033-7036.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2012, 2073, 2952-2970.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of (R)-Hexahydro-1H-pyrido[1,2-a]pyrazin-4(6H)-one hydrochloride Using HRMS and NMR". Chromatographia, 2013, 85, 5851-5873.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2018, 924, (6), 4677-4690.