发明人杨光,徐明华,赵玉洁. "Method for the Synthesis of Roflumilast USP Related Compound C" [P]. 中国发明专利, 专利号 CN 116070886 A, 授权公告日 2025-02-01.
发明人李文辉,赵玉洁,黄志刚. "A Process for Preparing High-Purity Roflumilast USP Related Compound C" [P]. 中国发明专利, 专利号 CN 112972675 A, 授权公告日 2021-07-06.
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