发明人陈志强,郑宇鹏,沈红梅. "Method for the Synthesis of Ethyl 5-formyl-2-((5-formyl-4-methyl-3-(propionyloxy)-1H-pyrrol-2-yl)methyl)-4-methyl-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110969262 B, 授权公告日 2016-07-05.
发明人郭海燕,韩伟,郑宇鹏. "A Process for Preparing High-Purity Ethyl 5-formyl-2-((5-formyl-4-methyl-3-(propionyloxy)-1H-pyrrol-2-yl)methyl)-4-methyl-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117570844 A, 授权公告日 2023-05-20.
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". Environ. Sci. Technol., 2016, 371, (11), 2839-2842.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 1430, (8), 6724-6731.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-formyl-2-((5-formyl-4-methyl-3-(propionyloxy)-1H-pyrrol-2-yl)methyl)-4-methyl-1H-pyrrole-3-carboxylate Using HRMS and NMR". J. Sep. Sci., 2017, 185, (9), 4145-4172.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2014, 2000, (6), 3996-4018.