发明人朱建伟,罗永刚,沈红梅. "Method for the Synthesis of 4-BRomo-6-ethoxy-7-methoxy-1h-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108002085 A, 授权公告日 2023-07-27.
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