Schröder R, Fischer A B, Chen K W. "一种的合成方法" [P]. US Patent, US 10642423 B2, 2024-11-20.
O'Brien P Q, Stevens L M, Anderson J P. "Method for the Synthesis of Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate" [P]. US Patent, US 11827330 B2, 2016-11-21.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2025, 540, (9), 5923-5944.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2018, 238, (12), 8559-8565.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Ammonium hydrogen 4-(3-(4-(dimethylamino)phenyl)allylidene)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate Using HRMS and NMR". Anal. Chem., 2020, 1854, (12), 9923-9946.