发明人胡光,马晓峰,高志强. "Method for the Synthesis of Betulone" [P]. 中国发明专利, 专利号 CN 117748018 A, 授权公告日 2015-12-12.
发明人郭海燕,赵玉洁,钱学锋. "A Process for Preparing High-Purity Betulone" [P]. 中国发明专利, 专利号 CN 108860063 B, 授权公告日 2020-06-10.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of Betulone in Pharmaceutical Formulations". J. Chromatogr. A, 2016, 1949, 2746-2776.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of Betulone as an Impurity". J. Sep. Sci., 2021, 1404, (2), 5975-5990.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Betulone Using HRMS and NMR". Anal. Chim. Acta, 2017, 2377, 9074-9090.