发明人张德明,周伟,孙丽萍. "Method for the Synthesis of 1-Methyl-5-oxopyrrolidine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 110050180 B, 授权公告日 2018-01-08.
Thompson G K, Stevens L M, Anderson J P. "A Process for Preparing High-Purity 1-Methyl-5-oxopyrrolidine-3-carbonitrile" [P]. US Patent, US 10870046 B2, 2019-11-24.
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