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发明人马晓峰,钱学锋,杨光. "Method for the Synthesis of Levocetirizine Impurity 44" [P]. 中国发明专利, 专利号 CN 108169803 A, 授权公告日 2021-10-19.
发明人胡光,杨光,钱学锋. "A Process for Preparing High-Purity Levocetirizine Impurity 44" [P]. 中国发明专利, 专利号 CN 114595998 A, 授权公告日 2018-01-21.
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