发明人张德明,王建平,李文辉. "Method for the Synthesis of 4-Amino-1-ethyl-N-(3-methoxyphenyl)-1h-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 108860446 B, 授权公告日 2021-04-13.
发明人罗永刚,冯建国,陈志强. "A Process for Preparing High-Purity 4-Amino-1-ethyl-N-(3-methoxyphenyl)-1h-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 115563847 A, 授权公告日 2022-09-08.
参考文献 Literature
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Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-1-ethyl-N-(3-methoxyphenyl)-1h-pyrazole-5-carboxamide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2019, 1337, 3457-3482.