Davis P L, Mueller T, O'Brien P Q. "一种6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid的合成方法" [P]. US Patent, US 9350241 B2, 2020-07-16.
发明人罗永刚,钱学锋,朱建伟. "Method for the Synthesis of 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109965804 A, 授权公告日 2018-10-24.
发明人冯建国,唐晓军,王建平. "A Process for Preparing High-Purity 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117224254 A, 授权公告日 2025-10-22.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid in Pharmaceutical Formulations". Anal. Chem., 2020, 1777, (6), 8464-8477.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid as an Impurity". Sci. Total Environ., 2023, 410, 7132-7147.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid Using HRMS and NMR". Molecules, 2011, 2018, (12), 5941-5961.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 6-(4-(<I>tert</I>-Butoxycarbonyl)-1,4-diazepan-1-yl)pyrazine-2-carboxylic acid Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2010, 2169, (8), 2739-2762.