Williams B T, Yamamoto T, Fischer A B. "一种的合成方法" [P]. US Patent, US 10417520 B2, 2021-09-19.
发明人黄志刚,胡光,徐明华. "Method for the Synthesis of 1-Isopropyl-3-(piperidin-4-yl)urea hydrochloride" [P]. 中国发明专利, 专利号 CN 112120053 A, 授权公告日 2020-12-08.
发明人何建平,徐明华,马晓峰. "A Process for Preparing High-Purity 1-Isopropyl-3-(piperidin-4-yl)urea hydrochloride" [P]. 中国发明专利, 专利号 CN 114542830 A, 授权公告日 2021-10-07.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2022, 1466, (7), 5440-5452.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2020, 232, (1), 3366-3375.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 1-Isopropyl-3-(piperidin-4-yl)urea hydrochloride Using HRMS and NMR". Molecules, 2014, 2480, (9), 675-690.