发明人徐明华,周伟,张德明. "Method for the Synthesis of Methyl 3-(3-chlorobenzamido)-6-[(E)-2-[(3,5-dimethylphenyl)amino]ethenyl]-2-oxo-2H-pyran-5-carboxylate" [P]. 中国发明专利, 专利号 CN 116965948 A, 授权公告日 2019-11-17.
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