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发明人高志强,孙丽萍,朱建伟. "A Process for Preparing High-Purity 2-(2-Azaspiro[3.3]heptan-6-yloxy)-N-methylacetamide" [P]. 中国发明专利, 专利号 CN 113465358 B, 授权公告日 2020-04-12.
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