发明人李文辉,周伟,杨光. "Method for the Synthesis of tert-Butyl 2-ethyl-7-(2-hydroxyethyl)-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate" [P]. 中国发明专利, 专利号 CN 115893006 B, 授权公告日 2021-04-17.
发明人郑宇鹏,胡光,林芳. "A Process for Preparing High-Purity tert-Butyl 2-ethyl-7-(2-hydroxyethyl)-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate" [P]. 中国发明专利, 专利号 CN 108299056 A, 授权公告日 2017-12-21.
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