发明人孙丽萍,唐晓军,张德明. "Method for the Synthesis of Quinazoline-2,4-diamine sulfate" [P]. 中国发明专利, 专利号 CN 111492462 A, 授权公告日 2023-03-22.
发明人韩伟,陈志强,朱建伟. "A Process for Preparing High-Purity Quinazoline-2,4-diamine sulfate" [P]. 中国发明专利, 专利号 CN 113775781 B, 授权公告日 2022-06-18.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2021, 1598, 9043-9055.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2020, 1189, (2), 5004-5030.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Quinazoline-2,4-diamine sulfate Using HRMS and NMR". Talanta, 2020, 2389, (9), 3118-3130.