发明人张德明,赵玉洁,林芳. "Method for the Synthesis of 3,3-Dimethylpyrrolidine-2-thione" [P]. 中国发明专利, 专利号 CN 115066411 A, 授权公告日 2020-05-19.
发明人张德明,李文辉,林芳. "A Process for Preparing High-Purity 3,3-Dimethylpyrrolidine-2-thione" [P]. 中国发明专利, 专利号 CN 114234839 A, 授权公告日 2018-06-16.
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