发明人林芳,朱建伟,钱学锋. "Method for the Synthesis of 10,10-Difluoro-2-(6-methylpyridazin-3-yl)-2,7-diazaspiro[4.5]decane" [P]. 中国发明专利, 专利号 CN 116858390 B, 授权公告日 2020-08-11.
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