发明人孙丽萍,林芳,张德明. "Method for the Synthesis of 3,4-Dihydro-4-hydroxy-1(2H)-pyridinecarboxylic Acid Ethyl Ester" [P]. 中国发明专利, 专利号 CN 112771123 B, 授权公告日 2025-11-01.
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