Johnson M A, Fischer A B, Lee S K. "Method for the Synthesis of 19-Norandrost-4-ene-3,17-dione" [P]. US Patent, US 11727149 B2, 2022-03-08.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 19-去甲-4-雄烯二酮 in Pharmaceutical Formulations". Molecules, 2022, 2197, (4), 2325-2349.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 19-去甲-4-雄烯二酮 as an Impurity". Rapid Commun. Mass Spectrom., 2020, 204, (3), 9829-9843.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 19-Norandrost-4-ene-3,17-dione Using HRMS and NMR". Chemosphere, 2013, 728, (4), 4536-4540.