发明人唐晓军,朱建伟,高志强. "Method for the Synthesis of 515860-78-3
Methyl 5-carbamoyl-2-[(cyanoacetyl)amino]-4-methylthiophene-3-carboxylate
MFCD03759373" [P]. 中国发明专利, 专利号 CN 110995519 B, 授权公告日 2019-08-09.
发明人朱建伟,胡光,周伟. "A Process for Preparing High-Purity 515860-78-3
Methyl 5-carbamoyl-2-[(cyanoacetyl)amino]-4-methylthiophene-3-carboxylate
MFCD03759373" [P]. 中国发明专利, 专利号 CN 112501330 A, 授权公告日 2021-01-06.
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