发明人林芳,王建平,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109530083 A, 授权公告日 2025-05-21.
发明人刘建华,杨光,徐明华. "Method for the Synthesis of Ethyl (7aS)-2-hydroxy-2-methyl-5-oxotetrahydro-1H-pyrrolizine-7a(5H)-carboxylate" [P]. 中国发明专利, 专利号 CN 115525564 A, 授权公告日 2015-06-06.
发明人唐晓军,陈志强,赵玉洁. "A Process for Preparing High-Purity Ethyl (7aS)-2-hydroxy-2-methyl-5-oxotetrahydro-1H-pyrrolizine-7a(5H)-carboxylate" [P]. 中国发明专利, 专利号 CN 110944495 B, 授权公告日 2015-11-06.
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". J. Sep. Sci., 2010, 1460, (2), 1551-1561.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2016, 1222, (3), 4413-4423.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl (7aS)-2-hydroxy-2-methyl-5-oxotetrahydro-1H-pyrrolizine-7a(5H)-carboxylate Using HRMS and NMR". Talanta, 2014, 2012, (5), 815-843.