发明人胡光,高志强,赵玉洁. "Method for the Synthesis of 4-(Diphenylmethyl)-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)piperazine-1-carboxamide" [P]. 中国发明专利, 专利号 CN 109873167 B, 授权公告日 2022-02-25.
Hughes D C, Davis P L, Chen K W. "A Process for Preparing High-Purity 4-(Diphenylmethyl)-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)piperazine-1-carboxamide" [P]. US Patent, US 9180304 B2, 2025-02-27.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2010, 584, (7), 1953-1979.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2011, 1083, (6), 1860-1890.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Diphenylmethyl)-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)piperazine-1-carboxamide Using HRMS and NMR". J. Sep. Sci., 2011, 1491, (9), 2377-2394.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2021, 294, 8379-8401.