发明人罗永刚,唐晓军,胡光. "Method for the Synthesis of 4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 109970069 B, 授权公告日 2022-04-05.
发明人赵玉洁,张德明,郭海燕. "A Process for Preparing High-Purity 4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 112151044 A, 授权公告日 2025-05-04.
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