Kowalski A, Schröder R, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3347822 A1, 2022-05-06.
Lee S K, Chen K W, Fischer A B. "Method for the Synthesis of 7-Amino-6-hydroxy-6,7,8,9-tetrahydro-2,9a-diazabenzo[cd]azulen-1(2H)-one hydrochloride" [P]. US Patent, US 11471944 B2, 2023-10-15.
Chen K W, Thompson G K, Mueller T. "A Process for Preparing High-Purity 7-Amino-6-hydroxy-6,7,8,9-tetrahydro-2,9a-diazabenzo[cd]azulen-1(2H)-one hydrochloride" [P]. US Patent, US 9102885 B2, 2019-07-17.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2024, 1210, (9), 4483-4503.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2021, 1462, 117-124.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 7-Amino-6-hydroxy-6,7,8,9-tetrahydro-2,9a-diazabenzo[cd]azulen-1(2H)-one hydrochloride Using HRMS and NMR". Anal. Chim. Acta, 2010, 2043, (5), 7817-7840.