发明人冯建国,徐明华,杨光. "一种罗格列酮杂质(5-[4-N-(2-吡啶氨基)乙氧基]亚苄基]噻唑烷-2,4-二酮)的合成方法" [P]. 中国发明专利, 专利号 CN 112932090 A, 授权公告日 2020-09-08.
发明人孙丽萍,陈志强,罗永刚. "Method for the Synthesis of Rosiglitazone Impurity (5-[4-N-(2-Pyridylamino)ethoxy]benzylidene] thiazolidine-2,4-dione)" [P]. 中国发明专利, 专利号 CN 115945550 A, 授权公告日 2024-04-22.
发明人徐明华,韩伟,钱学锋. "A Process for Preparing High-Purity Rosiglitazone Impurity (5-[4-N-(2-Pyridylamino)ethoxy]benzylidene] thiazolidine-2,4-dione)" [P]. 中国发明专利, 专利号 CN 115962749 A, 授权公告日 2016-02-23.
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