发明人王建平,郭海燕,黄志刚. "Method for the Synthesis of Pemetrexed Impurity N17" [P]. 中国发明专利, 专利号 CN 114077698 B, 授权公告日 2015-05-13.
发明人林芳,李文辉,孙丽萍. "A Process for Preparing High-Purity Pemetrexed Impurity N17" [P]. 中国发明专利, 专利号 CN 113702662 B, 授权公告日 2022-10-24.
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