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发明人孙丽萍,赵玉洁,马晓峰. "Method for the Synthesis of 3-Amino-1-(3,4-dimethoxybenzyl)-4-(3-methoxyphenyl)azetidin-2-one" [P]. 中国发明专利, 专利号 CN 112095314 A, 授权公告日 2022-07-16.
发明人王建平,张德明,韩伟. "A Process for Preparing High-Purity 3-Amino-1-(3,4-dimethoxybenzyl)-4-(3-methoxyphenyl)azetidin-2-one" [P]. 中国发明专利, 专利号 CN 109549124 B, 授权公告日 2017-02-26.
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