发明人郭海燕,徐明华,黄志刚. "Method for the Synthesis of tert-butyl 2-(hydroxymethyl)-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate" [P]. 中国发明专利, 专利号 CN 108349519 B, 授权公告日 2017-11-11.
发明人钱学锋,陈志强,周伟. "A Process for Preparing High-Purity tert-butyl 2-(hydroxymethyl)-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate" [P]. 中国发明专利, 专利号 CN 113048892 B, 授权公告日 2019-03-17.
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