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发明人黄志刚,罗永刚,朱建伟. "Method for the Synthesis of Ethyl 2-hydroxy-2-(2-oxodihydro-2H-pyran-3(4H)-ylidene)acetate" [P]. 中国发明专利, 专利号 CN 111393613 A, 授权公告日 2021-10-12.
发明人周伟,罗永刚,唐晓军. "A Process for Preparing High-Purity Ethyl 2-hydroxy-2-(2-oxodihydro-2H-pyran-3(4H)-ylidene)acetate" [P]. 中国发明专利, 专利号 CN 111161178 B, 授权公告日 2025-07-08.
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