Chen K W, Yamamoto T, Johnson M A. "一种的合成方法" [P]. US Patent, US 10160267 B2, 2019-02-11.
发明人马晓峰,何建平,黄志刚. "Method for the Synthesis of 2,3-Dimethyl-2H-indazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 111868806 A, 授权公告日 2024-10-01.
发明人朱建伟,韩伟,唐晓军. "A Process for Preparing High-Purity 2,3-Dimethyl-2H-indazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 108617515 B, 授权公告日 2018-06-27.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2015, 960, (8), 9466-9483.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2019, 231, (6), 4752-4767.