发明人赵玉洁,马晓峰,周伟. "Method for the Synthesis of 2-(Cyclopropylamino)-4-ethylpyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115401513 B, 授权公告日 2020-03-18.
发明人钱学锋,郭海燕,罗永刚. "A Process for Preparing High-Purity 2-(Cyclopropylamino)-4-ethylpyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111928870 A, 授权公告日 2023-11-13.
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