发明人周伟,刘建华,唐晓军. "Method for the Synthesis of 2-(1,4,7,10-Tetraazacyclododecan-1-yl)acetic acid trihydrochloride" [P]. 中国发明专利, 专利号 CN 112895763 A, 授权公告日 2017-10-15.
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