Rossi M, Jørgensen K, Björnsson E. "Method for the Synthesis of Methyl 2-azaspiro[3.4]Octane-1-carboxylate hydrochloride" [P]. European Patent, EP 3485378 A1, 2019-02-14.
发明人张德明,周伟,李文辉. "A Process for Preparing High-Purity Methyl 2-azaspiro[3.4]Octane-1-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 109477003 A, 授权公告日 2022-11-11.
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