发明人钱学锋,徐明华,周伟. "Method for the Synthesis of N-((1,4-Dioxaspiro[4.4]nonan-2-yl)methyl)-3-(4-methoxyphenyl)propanamide" [P]. 中国发明专利, 专利号 CN 112109553 B, 授权公告日 2020-10-06.
发明人张德明,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity N-((1,4-Dioxaspiro[4.4]nonan-2-yl)methyl)-3-(4-methoxyphenyl)propanamide" [P]. 中国发明专利, 专利号 CN 117317379 B, 授权公告日 2016-08-20.
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