发明人韩伟,杨光,黄志刚. "Method for the Synthesis of 6-(4-Methoxyphenyl)-3-methyl-1,5,6,7-tetrahydro-4H-indazol-4-one" [P]. 中国发明专利, 专利号 CN 112686258 B, 授权公告日 2023-05-06.
发明人徐明华,韩伟,罗永刚. "A Process for Preparing High-Purity 6-(4-Methoxyphenyl)-3-methyl-1,5,6,7-tetrahydro-4H-indazol-4-one" [P]. 中国发明专利, 专利号 CN 111020038 B, 授权公告日 2018-08-16.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2015, 1803, (2), 8382-8403.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2021, 1488, 9305-9317.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 6-(4-Methoxyphenyl)-3-methyl-1,5,6,7-tetrahydro-4H-indazol-4-one Using HRMS and NMR". Anal. Methods, 2018, 244, (11), 8017-8046.