Chen K W, Mueller T, Johnson M A. "Method for the Synthesis of 9-Ethyl-6,9-diazaspiro[4.5]Decane" [P]. US Patent, US 10684336 B2, 2016-12-18.
发明人郑宇鹏,罗永刚,韩伟. "A Process for Preparing High-Purity 9-Ethyl-6,9-diazaspiro[4.5]Decane" [P]. 中国发明专利, 专利号 CN 114708429 A, 授权公告日 2020-03-26.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 799, 8610-8617.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 1428, 8904-8921.