发明人高志强,冯建国,钱学锋. "Method for the Synthesis of Tert-butyl 12-oxo-2,7,11-triazaspiro[5.6]dodecane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117484328 A, 授权公告日 2020-05-09.
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