发明人刘建华,徐明华,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116316146 A, 授权公告日 2021-07-06.
发明人徐明华,朱建伟,沈红梅. "Method for the Synthesis of 1242962-24-8
Ethyl 3-amino-4-[(2-{[(cyclopentylamino)carbonyl]amino}ethyl)amino]benzoate
MFCD15732370" [P]. 中国发明专利, 专利号 CN 112567215 B, 授权公告日 2020-09-22.
发明人徐明华,王建平,罗永刚. "A Process for Preparing High-Purity 1242962-24-8
Ethyl 3-amino-4-[(2-{[(cyclopentylamino)carbonyl]amino}ethyl)amino]benzoate
MFCD15732370" [P]. 中国发明专利, 专利号 CN 111520982 A, 授权公告日 2022-06-15.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2021, 80, (8), 7328-7343.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2024, 1811, (11), 555-566.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1242962-24-8
Ethyl 3-amino-4-[(2-{[(cyclopentylamino)carbonyl]amino}ethyl)amino]benzoate
MFCD15732370 Using HRMS and NMR". Chemosphere, 2016, 1480, 4878-4907.