Kowalski A, Björnsson E, Mueller T C. "一种尼卡地平杂质N2的合成方法" [P]. European Patent, EP 3746687 A1, 2018-02-07.
发明人张德明,马晓峰,韩伟. "Method for the Synthesis of Nicardipine Impurity N12" [P]. 中国发明专利, 专利号 CN 113702009 B, 授权公告日 2019-05-10.
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