发明人林芳,周伟,钱学锋. "Method for the Synthesis of (E)-N-{5H-chromeno[4,3-d]pyrimidin-2-yl}-N'-[(4-fluorophenyl)methoxy]methanimidamide" [P]. 中国发明专利, 专利号 CN 108434485 B, 授权公告日 2020-07-28.
发明人张德明,钱学锋,何建平. "A Process for Preparing High-Purity (E)-N-{5H-chromeno[4,3-d]pyrimidin-2-yl}-N'-[(4-fluorophenyl)methoxy]methanimidamide" [P]. 中国发明专利, 专利号 CN 114893132 B, 授权公告日 2018-01-05.
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