发明人张德明,胡光,郭海燕. "Method for the Synthesis of 2-(1-Methyl-2,4-dioxo-1,3-diazaspiro[4.5]Decan-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115136170 B, 授权公告日 2025-01-17.
发明人唐晓军,黄志刚,钱学锋. "A Process for Preparing High-Purity 2-(1-Methyl-2,4-dioxo-1,3-diazaspiro[4.5]Decan-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 110399801 A, 授权公告日 2020-04-17.
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