发明人钱学锋,陈志强,黄志刚. "Method for the Synthesis of 2-((6-Ethyl-2-methylthieno[2,3-d]pyrimidin-4-yl)amino)acetic acid" [P]. 中国发明专利, 专利号 CN 117172462 B, 授权公告日 2017-01-28.
发明人赵玉洁,王建平,高志强. "A Process for Preparing High-Purity 2-((6-Ethyl-2-methylthieno[2,3-d]pyrimidin-4-yl)amino)acetic acid" [P]. 中国发明专利, 专利号 CN 115858693 B, 授权公告日 2017-03-22.
参考文献 Literature
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