Lee S K, Davis P L, Mueller T. "一种索他洛尔EP杂质A HCl的合成方法" [P]. US Patent, US 11217153 B2, 2018-02-18.
发明人赵玉洁,黄志刚,李文辉. "Method for the Synthesis of Sotalol EP Impurity A HCl" [P]. 中国发明专利, 专利号 CN 114377674 A, 授权公告日 2018-11-25.
发明人唐晓军,郭海燕,朱建伟. "A Process for Preparing High-Purity Sotalol EP Impurity A HCl" [P]. 中国发明专利, 专利号 CN 111142011 B, 授权公告日 2019-07-21.
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