Schröder R, Lee S K, Anderson J P. "一种的合成方法" [P]. US Patent, US 9466012 B2, 2018-03-13.
发明人马晓峰,唐晓军,张德明. "Method for the Synthesis of 5-Ethoxy-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 110969418 B, 授权公告日 2021-01-17.
发明人王建平,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity 5-Ethoxy-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 114592155 A, 授权公告日 2023-09-10.
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