发明人张德明,郑宇鹏,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116602328 A, 授权公告日 2024-03-12.
发明人唐晓军,周伟,张德明. "Method for the Synthesis of 6-Amino-4-ethyl-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 111350829 B, 授权公告日 2015-04-16.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2022, 1648, 8228-8251.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2024, 2260, 6347-6372.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-4-ethyl-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile Using HRMS and NMR". J. Agric. Food Chem., 2012, 1043, (3), 6737-6741.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2025, 1104, (2), 7772-7789.