发明人胡光,钱学锋,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108336535 A, 授权公告日 2018-01-28.
Rossi M, Jørgensen K, Nielsen H. "Method for the Synthesis of 3-(4-Chlorophenyl)-1,4-diazaspiro[4.4]Non-3-ene-2-thione" [P]. European Patent, EP 3305993 A1, 2021-04-27.
Thompson G K, Schröder R, O'Brien P Q. "A Process for Preparing High-Purity 3-(4-Chlorophenyl)-1,4-diazaspiro[4.4]Non-3-ene-2-thione" [P]. US Patent, US 9658422 B2, 2017-09-22.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2018, 640, (4), 1577-1582.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2019, 1148, 4773-4793.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Chlorophenyl)-1,4-diazaspiro[4.4]Non-3-ene-2-thione Using HRMS and NMR". Anal. Chim. Acta, 2010, 1947, (6), 4948-4968.