O'Brien P Q, Chen K W, Thompson G K. "Method for the Synthesis of Ethyl 1-cyclopentyl-5-hydroxy-2-methyl-1h-indole-3-carboxylate" [P]. US Patent, US 10702319 B2, 2019-07-13.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2021, 1364, (1), 4163-4185.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2012, 1807, 1574-1577.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1-cyclopentyl-5-hydroxy-2-methyl-1h-indole-3-carboxylate Using HRMS and NMR". Chromatographia, 2020, 952, (12), 7836-7860.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2012, 2178, (12), 1288-1305.