发明人杨光,韩伟,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109207283 A, 授权公告日 2017-11-16.
Thompson G K, Brown S R, Stevens L M. "Method for the Synthesis of Methyl 9H-pyrrolo[2,3-b:5,4-c']dipyridine-6-carboxylate, 97%" [P]. US Patent, US 9615387 B2, 2023-05-08.
发明人李文辉,郭海燕,罗永刚. "A Process for Preparing High-Purity Methyl 9H-pyrrolo[2,3-b:5,4-c']dipyridine-6-carboxylate, 97%" [P]. 中国发明专利, 专利号 CN 111953259 B, 授权公告日 2015-06-17.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2021, 861, (6), 988-1000.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 844, (1), 3265-3285.