O'Brien P Q, Mueller T, Fischer A B. "Method for the Synthesis of 4-Hydroxy-5-(hydroxymethyl)-2-oxo-2,5-dihydro-1H-pyrrole-3-carbonitrile" [P]. US Patent, US 10497543 B2, 2017-03-01.
发明人刘建华,唐晓军,王建平. "A Process for Preparing High-Purity 4-Hydroxy-5-(hydroxymethyl)-2-oxo-2,5-dihydro-1H-pyrrole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 110898660 B, 授权公告日 2025-02-20.
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