Kumar R, Yamamoto T, Lee S K. "Method for the Synthesis of 4-[(Aminocarbonyl)amino]-D-phenylalanine" [P]. US Patent, US 10042001 B2, 2017-02-03.
发明人张德明,唐晓军,钱学锋. "A Process for Preparing High-Purity 4-[(Aminocarbonyl)amino]-D-phenylalanine" [P]. 中国发明专利, 专利号 CN 115002525 B, 授权公告日 2023-09-02.
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