发明人杨光,冯建国,周伟. "Method for the Synthesis of 5-(difluoromethyl)-1-(2-hydroxyethyl)-3-methyl-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108406269 B, 授权公告日 2017-09-11.
发明人郭海燕,王建平,孙丽萍. "A Process for Preparing High-Purity 5-(difluoromethyl)-1-(2-hydroxyethyl)-3-methyl-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115585328 B, 授权公告日 2023-04-03.
参考文献 Literature
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