发明人冯建国,胡光,李文辉. "Method for the Synthesis of oxalic acid;(2R)-piperidine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 110927488 B, 授权公告日 2019-07-25.
发明人张德明,杨光,徐明华. "A Process for Preparing High-Purity oxalic acid;(2R)-piperidine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 116063321 B, 授权公告日 2020-05-16.
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