Lefèvre J P, Nielsen H, Björnsson E. "一种(S)-2-((R)-2-氨基-3-甲基丁酰胺基)-N-((S)-5-胍基-1-((4-硝基苯基)氨基)-1-氧代戊烷-2-基)-4-甲基戊酰胺乙酸盐的合成方法" [P]. European Patent, EP 3786980 A1, 2018-12-17.
发明人韩伟,胡光,钱学锋. "Method for the Synthesis of (S)-2-((R)-2-Amino-3-methylbutanamido)-N-((S)-5-guanidino-1-((4-nitrophenyl)amino)-1-oxopentan-2-yl)-4-methylpentanamide acetate" [P]. 中国发明专利, 专利号 CN 111551392 B, 授权公告日 2019-03-14.
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