发明人郑宇鹏,马晓峰,杨光. "Method for the Synthesis of Ethyl 2-[5-(methylamino)-3h-imidazo[4,5-b]pyridin-2-yl]acetate" [P]. 中国发明专利, 专利号 CN 111576641 B, 授权公告日 2019-03-07.
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