发明人钱学锋,马晓峰,王建平. "Method for the Synthesis of 1-Methyl-1'-(pyrazine-2-carbonyl)spiro[indoline-3,4'-piperidin]-2-one" [P]. 中国发明专利, 专利号 CN 112640351 A, 授权公告日 2023-11-27.
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