发明人何建平,唐晓军,赵玉洁. "Method for the Synthesis of 2'-Methyl-6',7'-dihydro-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-7'-one" [P]. 中国发明专利, 专利号 CN 114969032 B, 授权公告日 2025-04-18.
发明人钱学锋,林芳,郑宇鹏. "A Process for Preparing High-Purity 2'-Methyl-6',7'-dihydro-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-7'-one" [P]. 中国发明专利, 专利号 CN 109159038 A, 授权公告日 2017-05-25.
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