发明人钱学锋,周伟,马晓峰. "Method for the Synthesis of Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6)" [P]. 中国发明专利, 专利号 CN 115325200 A, 授权公告日 2022-04-09.
发明人钱学锋,沈红梅,赵玉洁. "A Process for Preparing High-Purity Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6)" [P]. 中国发明专利, 专利号 CN 109924799 B, 授权公告日 2015-06-13.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 5-乙酰基噻吩-2-羧酸甲酯(阿罗洛尔杂质6) in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2012, 2100, (4), 7048-7069.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-乙酰基噻吩-2-羧酸甲酯(阿罗洛尔杂质6) as an Impurity". Chromatographia, 2018, 637, (1), 8904-8907.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6) Using HRMS and NMR". Phytochemistry, 2025, 593, (11), 7534-7539.