发明人刘建华,朱建伟,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108888123 A, 授权公告日 2021-01-26.
发明人张德明,罗永刚,郑宇鹏. "Method for the Synthesis of 4-[[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]amino]butanoic acid" [P]. 中国发明专利, 专利号 CN 110527552 A, 授权公告日 2024-04-17.
发明人赵玉洁,钱学锋,马晓峰. "A Process for Preparing High-Purity 4-[[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]amino]butanoic acid" [P]. 中国发明专利, 专利号 CN 115724524 A, 授权公告日 2019-03-04.
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