Schröder R, Johnson M A, Patel M V. "一种的合成方法" [P]. US Patent, US 11066541 B2, 2023-12-02.
发明人赵玉洁,周伟,黄志刚. "Method for the Synthesis of 2-(4-{[(3Z)-1-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino}phenyl)acetonitrile" [P]. 中国发明专利, 专利号 CN 117177182 B, 授权公告日 2015-04-25.
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