Thompson G K, Roberts E F, Lee S K. "一种的合成方法" [P]. US Patent, US 10370235 B2, 2018-07-01.
发明人周伟,王建平,林芳. "Method for the Synthesis of (S)-3,5-Bis(tert-butoxycarbonyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111979095 A, 授权公告日 2018-12-13.
发明人黄志刚,周伟,王建平. "A Process for Preparing High-Purity (S)-3,5-Bis(tert-butoxycarbonyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115443005 B, 授权公告日 2019-07-01.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2016, 427, (3), 5250-5266.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 1869, (8), 6907-6923.