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Nielsen H, Lefèvre J P, Nowak P. "Method for the Synthesis of Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate" [P]. European Patent, EP 3373654 A1, 2025-02-26.
发明人刘建华,韩伟,杨光. "A Process for Preparing High-Purity Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 114641809 A, 授权公告日 2018-12-13.
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