发明人孙丽萍,高志强,罗永刚. "Method for the Synthesis of 1-Benzyl-2-(2-ethoxy-2-oxoethyl)pyridin-1-ium bromide" [P]. 中国发明专利, 专利号 CN 110442242 B, 授权公告日 2015-09-15.
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