发明人郭海燕,罗永刚,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109272140 A, 授权公告日 2022-11-05.
Sørensen M, Jørgensen K, Martínez F. "Method for the Synthesis of 1-(tert-Butoxycarbonyl)-2,3-dihydro-1H-imidazo[1,2-b]pyrazole-7-carboxylic acid" [P]. European Patent, EP 3347426 A1, 2019-03-13.
发明人赵玉洁,罗永刚,李文辉. "A Process for Preparing High-Purity 1-(tert-Butoxycarbonyl)-2,3-dihydro-1H-imidazo[1,2-b]pyrazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116863818 A, 授权公告日 2015-09-09.
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". Chromatographia, 2018, 2031, (10), 2055-2059.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2019, 1253, (4), 1240-1267.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 1-(tert-Butoxycarbonyl)-2,3-dihydro-1H-imidazo[1,2-b]pyrazole-7-carboxylic acid Using HRMS and NMR". Talanta, 2010, 1566, (11), 3213-3219.