发明人孙丽萍,刘建华,胡光. "Method for the Synthesis of 5-(4-Chlorophenyl)-1-hydroxy-3-phenylpyrazin-2(1H)-one" [P]. 中国发明专利, 专利号 CN 114382992 B, 授权公告日 2020-11-16.
发明人赵玉洁,郭海燕,沈红梅. "A Process for Preparing High-Purity 5-(4-Chlorophenyl)-1-hydroxy-3-phenylpyrazin-2(1H)-one" [P]. 中国发明专利, 专利号 CN 108530874 B, 授权公告日 2021-07-02.
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