发明人何建平,黄志刚,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109212597 A, 授权公告日 2022-02-16.
发明人陈志强,马晓峰,张德明. "Method for the Synthesis of 4-(4-Carbamoyl-3-nitro-1H-pyrazol-1-yl)butanoic acid" [P]. 中国发明专利, 专利号 CN 108679396 A, 授权公告日 2019-03-16.
发明人赵玉洁,钱学锋,胡光. "A Process for Preparing High-Purity 4-(4-Carbamoyl-3-nitro-1H-pyrazol-1-yl)butanoic acid" [P]. 中国发明专利, 专利号 CN 108484302 B, 授权公告日 2024-12-01.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 261, (4), 9139-9145.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2014, 525, 8771-8794.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(4-Carbamoyl-3-nitro-1H-pyrazol-1-yl)butanoic acid Using HRMS and NMR". Phytochemistry, 2017, 2165, (12), 3361-3364.