发明人沈红梅,孙丽萍,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109756446 A, 授权公告日 2017-05-02.
发明人王建平,马晓峰,高志强. "Method for the Synthesis of 6-Amino-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-3-(2,4-dimethylphenyl)-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 117209477 B, 授权公告日 2021-01-13.
Mueller T C, Martínez F, Nielsen H. "A Process for Preparing High-Purity 6-Amino-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-3-(2,4-dimethylphenyl)-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile" [P]. European Patent, EP 3884513 A1, 2021-05-05.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2019, 1800, (5), 3470-3476.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2021, 946, (3), 2374-2394.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-3-(2,4-dimethylphenyl)-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile Using HRMS and NMR". Molecules, 2014, 1721, 9868-9885.