Chen K W, O'Brien P Q, Fischer A B. "Method for the Synthesis of 4-methyl-3,6-dihydro-2H-pyran-2,6-dione" [P]. US Patent, US 9868043 B2, 2022-10-10.
发明人沈红梅,陈志强,王建平. "A Process for Preparing High-Purity 4-methyl-3,6-dihydro-2H-pyran-2,6-dione" [P]. 中国发明专利, 专利号 CN 112796893 A, 授权公告日 2020-08-18.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2010, 960, 7107-7111.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2020, 2223, (6), 3011-3033.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-methyl-3,6-dihydro-2H-pyran-2,6-dione Using HRMS and NMR". Molecules, 2013, 931, (7), 2645-2662.