发明人郭海燕,高志强,沈红梅. "Method for the Synthesis of 6-(tert-Butyl) 3-ethyl 4-oxohexahydro-2H-pyrano[3,2-c]pyridine-3,6(5H)-dicarboxylate" [P]. 中国发明专利, 专利号 CN 114339175 A, 授权公告日 2015-02-25.
发明人韩伟,朱建伟,孙丽萍. "A Process for Preparing High-Purity 6-(tert-Butyl) 3-ethyl 4-oxohexahydro-2H-pyrano[3,2-c]pyridine-3,6(5H)-dicarboxylate" [P]. 中国发明专利, 专利号 CN 112010477 B, 授权公告日 2017-08-05.
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