Nowak P, Kowalski A, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3015223 A1, 2024-07-09.
Schröder R, Davis P L, Park J H. "Method for the Synthesis of Ethyl 6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate hydrochloride" [P]. US Patent, US 9299680 B2, 2020-02-08.
发明人周伟,罗永刚,马晓峰. "A Process for Preparing High-Purity Ethyl 6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 110670807 B, 授权公告日 2018-09-02.
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". Sci. Total Environ., 2022, 2257, (2), 337-341.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2024, 1697, 4886-4915.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate hydrochloride Using HRMS and NMR". Environ. Sci. Technol., 2023, 318, (4), 3444-3474.