发明人黄志刚,孙丽萍,何建平. "Method for the Synthesis of 1-(2-Chloroacetyl)-1,4-diazaspiro[5.5]undecane-3,5-dione" [P]. 中国发明专利, 专利号 CN 114278404 A, 授权公告日 2022-02-11.
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