Davis P L, Lee S K, Klinger H. "Method for the Synthesis of ethyl 4-chloro-5-methyl-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylate" [P]. US Patent, US 9936276 B2, 2024-09-11.
发明人李文辉,何建平,林芳. "A Process for Preparing High-Purity ethyl 4-chloro-5-methyl-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylate" [P]. 中国发明专利, 专利号 CN 117121045 A, 授权公告日 2017-02-05.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 乙基 4-氯-5-甲基-5H-吡咯并[3,2-d]嘧啶-7-甲酸基酯 in Pharmaceutical Formulations". J. Agric. Food Chem., 2024, 239, (8), 8430-8450.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乙基 4-氯-5-甲基-5H-吡咯并[3,2-d]嘧啶-7-甲酸基酯 as an Impurity". Anal. Methods, 2020, 1368, 4198-4201.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 4-chloro-5-methyl-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2017, 164, (6), 5082-5085.