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发明人张德明,刘建华,陈志强. "Method for the Synthesis of 1-(2,3-Dimethylphenyl)-4-oxopyrrolidine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 117264533 A, 授权公告日 2018-09-06.
发明人王建平,钱学锋,郭海燕. "A Process for Preparing High-Purity 1-(2,3-Dimethylphenyl)-4-oxopyrrolidine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114201863 A, 授权公告日 2020-04-10.
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