发明人孙丽萍,赵玉洁,罗永刚. "Method for the Synthesis of Ethyl 7-bromo-4-chloro-5H-pyrrolo[3,2-b:4,5-b']dipyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113950286 B, 授权公告日 2019-05-26.
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