Martínez F, Jørgensen K, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3526797 A1, 2017-03-22.
Brown S R, Williams B T, Hughes D C. "Method for the Synthesis of tert-Butyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate" [P]. US Patent, US 10741899 B2, 2021-06-20.
发明人马晓峰,郭海燕,朱建伟. "A Process for Preparing High-Purity tert-Butyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111110001 A, 授权公告日 2019-01-08.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2015, 251, (12), 839-865.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 1326, 615-620.