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发明人孙丽萍,冯建国,张德明. "Method for the Synthesis of 3-((Tert-butoxycarbonyl)(methyl)amino)thietane-3-carboxylic acid 1,1-dioxide" [P]. 中国发明专利, 专利号 CN 112233192 B, 授权公告日 2017-06-19.
发明人徐明华,赵玉洁,冯建国. "A Process for Preparing High-Purity 3-((Tert-butoxycarbonyl)(methyl)amino)thietane-3-carboxylic acid 1,1-dioxide" [P]. 中国发明专利, 专利号 CN 115851453 B, 授权公告日 2025-08-15.
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