Yamamoto T, Park J H, Chen K W. "一种拉呋替丁杂质2的合成方法" [P]. US Patent, US 10628111 B2, 2025-02-11.
发明人唐晓军,林芳,何建平. "Method for the Synthesis of Lafutidine Impurity 2" [P]. 中国发明专利, 专利号 CN 116169439 A, 授权公告日 2022-07-21.
发明人郑宇鹏,韩伟,高志强. "A Process for Preparing High-Purity Lafutidine Impurity 2" [P]. 中国发明专利, 专利号 CN 117179779 A, 授权公告日 2021-02-14.
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