Nowak P, Rossi M, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3525538 A1, 2018-02-04.
发明人陈志强,黄志刚,韩伟. "Method for the Synthesis of 4H,5H,6H,7H,8H-Cyclohepta[b]thiophene-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 116559404 B, 授权公告日 2023-08-08.
Kowalski A, Björnsson E, Jørgensen K. "A Process for Preparing High-Purity 4H,5H,6H,7H,8H-Cyclohepta[b]thiophene-2-carbohydrazide" [P]. European Patent, EP 3698084 A1, 2020-04-15.
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". Anal. Methods, 2019, 904, 5548-5571.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2015, 2351, (10), 6079-6103.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4H,5H,6H,7H,8H-Cyclohepta[b]thiophene-2-carbohydrazide Using HRMS and NMR". Anal. Chem., 2010, 1387, (3), 4429-4444.