Martínez F, Nielsen H, Kowalski A. "一种tert-butyl 1-methyl-6-(1H-tetrazol-5-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate的合成方法" [P]. European Patent, EP 3618623 A1, 2024-04-12.
Roberts E F, Kumar R, Park J H. "Method for the Synthesis of tert-butyl 1-methyl-6-(1H-tetrazol-5-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate" [P]. US Patent, US 9860317 B2, 2020-09-24.
发明人沈红梅,何建平,李文辉. "A Process for Preparing High-Purity tert-butyl 1-methyl-6-(1H-tetrazol-5-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate" [P]. 中国发明专利, 专利号 CN 112728013 B, 授权公告日 2017-02-05.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of tert-butyl 1-methyl-6-(1H-tetrazol-5-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate in Pharmaceutical Formulations". Talanta, 2020, 1612, 3739-3761.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of tert-butyl 1-methyl-6-(1H-tetrazol-5-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate as an Impurity". Phytochemistry, 2018, 2289, 7739-7761.