Yamamoto T, Williams B T, Hughes D C. "Method for the Synthesis of 56569-41-6
(E)-2-Cyano-pent-2-enoic acid ethyl ester
MFCD00089564" [P]. US Patent, US 9436249 B2, 2018-11-27.
发明人张德明,林芳,郑宇鹏. "A Process for Preparing High-Purity 56569-41-6
(E)-2-Cyano-pent-2-enoic acid ethyl ester
MFCD00089564" [P]. 中国发明专利, 专利号 CN 112119800 B, 授权公告日 2024-09-18.
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