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发明人王建平,郑宇鹏,黄志刚. "Method for the Synthesis of 8-[N-(2-Diphenylmethoxyethyl)-N,N-dimethylaminium]-1,3-dimethylxanthine Inner Salt" [P]. 中国发明专利, 专利号 CN 113854239 B, 授权公告日 2019-12-02.
发明人杨光,王建平,胡光. "A Process for Preparing High-Purity 8-[N-(2-Diphenylmethoxyethyl)-N,N-dimethylaminium]-1,3-dimethylxanthine Inner Salt" [P]. 中国发明专利, 专利号 CN 109094117 A, 授权公告日 2023-09-13.
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