发明人高志强,何建平,钱学锋. "一种丁卡因杂质37的合成方法" [P]. 中国发明专利, 专利号 CN 109539393 A, 授权公告日 2025-05-01.
发明人胡光,黄志刚,郭海燕. "Method for the Synthesis of Tetracaine Impurity 37" [P]. 中国发明专利, 专利号 CN 112266594 B, 授权公告日 2022-03-02.
发明人杨光,罗永刚,郑宇鹏. "A Process for Preparing High-Purity Tetracaine Impurity 37" [P]. 中国发明专利, 专利号 CN 113480083 B, 授权公告日 2018-10-25.
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