发明人郭海燕,王建平,罗永刚. "一种阿司匹林杂质12的合成方法" [P]. 中国发明专利, 专利号 CN 117272000 A, 授权公告日 2019-01-25.
Chen K W, Mueller T, Hughes D C. "Method for the Synthesis of Aspirin Impurity 12" [P]. US Patent, US 10261013 B2, 2018-01-08.
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