发明人陈志强,黄志刚,孙丽萍. "Method for the Synthesis of 4-((4-(2-Hydroxyethyl)piperazin-1-yl)sulfonyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 116693418 B, 授权公告日 2019-11-14.
发明人杨光,林芳,张德明. "A Process for Preparing High-Purity 4-((4-(2-Hydroxyethyl)piperazin-1-yl)sulfonyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 111484052 B, 授权公告日 2022-02-21.
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