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发明人徐明华,沈红梅,胡光. "Method for the Synthesis of 4-Methoxy-2,5-dioxo-2,5-dihydro-1H-pyrrole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116768929 A, 授权公告日 2019-04-18.
发明人郭海燕,何建平,高志强. "A Process for Preparing High-Purity 4-Methoxy-2,5-dioxo-2,5-dihydro-1H-pyrrole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 108807280 B, 授权公告日 2019-09-13.
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