发明人郑宇鹏,赵玉洁,胡光. "一种乙硫异烟胺EP杂质A的合成方法" [P]. 中国发明专利, 专利号 CN 114649497 A, 授权公告日 2019-02-26.
发明人张德明,杨光,钱学锋. "Method for the Synthesis of Ethionamide EP Impurity A" [P]. 中国发明专利, 专利号 CN 111684671 B, 授权公告日 2015-10-07.
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