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发明人林芳,陈志强,郑宇鹏. "Method for the Synthesis of Methyl (2Z)-2-cyano-2-(1,2-dihydro-2-oxo-3H-indol-3-ylidene)acetate" [P]. 中国发明专利, 专利号 CN 116253973 A, 授权公告日 2020-04-17.
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