发明人徐明华,郭海燕,罗永刚. "Method for the Synthesis of 2-Amino-7-(5-methyl-2-thienyl)-7,8-dihydroquinazolin-5(6H)-one" [P]. 中国发明专利, 专利号 CN 112557597 B, 授权公告日 2025-03-02.
发明人郑宇鹏,黄志刚,朱建伟. "A Process for Preparing High-Purity 2-Amino-7-(5-methyl-2-thienyl)-7,8-dihydroquinazolin-5(6H)-one" [P]. 中国发明专利, 专利号 CN 110648325 B, 授权公告日 2019-09-28.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2018, 1910, (9), 9478-9488.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2010, 2355, (1), 6522-6526.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-7-(5-methyl-2-thienyl)-7,8-dihydroquinazolin-5(6H)-one Using HRMS and NMR". Molecules, 2017, 1448, 7357-7363.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2020, 872, (5), 8597-8619.