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发明人郭海燕,黄志刚,钱学锋. "Method for the Synthesis of 1-{8-azabicyclo[3.2.1]octan-3-yl}-3,3-dimethylurea hydrochloride" [P]. 中国发明专利, 专利号 CN 108804877 B, 授权公告日 2023-03-01.
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