Kumar R, Patel M V, Fischer A B. "Method for the Synthesis of 3-Ethyl-1,3-bis(hydroxymethyl)indolin-2-one" [P]. US Patent, US 11794630 B2, 2023-04-16.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2012, 1050, 5826-5843.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2014, 1887, 5452-5458.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-1,3-bis(hydroxymethyl)indolin-2-one Using HRMS and NMR". J. Sep. Sci., 2025, 2236, 6690-6705.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2022, 289, 7631-7635.