发明人马晓峰,李文辉,郑宇鹏. "Method for the Synthesis of Tert-butyl 3-(pyrazin-2-ylamino)azetidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 110267572 B, 授权公告日 2023-07-17.
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