Chen K W, Williams B T, Johnson M A. "Method for the Synthesis of (S)-2-(4-(3-(2,4-diamino-6-oxo-1,6-dihydropyrimidin-5-yl)ureido)benzamido)pentanedioic Acid" [P]. US Patent, US 10992982 B2, 2025-11-13.
发明人韩伟,钱学锋,郑宇鹏. "A Process for Preparing High-Purity (S)-2-(4-(3-(2,4-diamino-6-oxo-1,6-dihydropyrimidin-5-yl)ureido)benzamido)pentanedioic Acid" [P]. 中国发明专利, 专利号 CN 117807333 A, 授权公告日 2021-02-07.
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