Jørgensen K, Johansson L, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3038410 A1, 2015-03-25.
发明人黄志刚,钱学锋,林芳. "Method for the Synthesis of 5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate" [P]. 中国发明专利, 专利号 CN 108269789 B, 授权公告日 2023-01-26.
发明人徐明华,沈红梅,周伟. "A Process for Preparing High-Purity 5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate" [P]. 中国发明专利, 专利号 CN 111258453 B, 授权公告日 2015-10-14.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2022, 2207, 1471-1491.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2010, 1953, 9809-9813.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate Using HRMS and NMR". Anal. Chem., 2023, 2001, 576-594.