发明人林芳,罗永刚,刘建华. "Method for the Synthesis of 2'-Methyl-3',4'-dihydro-2'H-spiro[piperidine-4,1'-pyrrolo[1,2-a]pyrazine]-6'-carbonitrile hydrochloride" [P]. 中国发明专利, 专利号 CN 117935814 A, 授权公告日 2021-05-11.
Roberts E F, Williams B T, O'Brien P Q. "A Process for Preparing High-Purity 2'-Methyl-3',4'-dihydro-2'H-spiro[piperidine-4,1'-pyrrolo[1,2-a]pyrazine]-6'-carbonitrile hydrochloride" [P]. US Patent, US 10078463 B2, 2016-09-27.
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