发明人高志强,徐明华,胡光. "Method for the Synthesis of Calcitriol Impurity 33" [P]. 中国发明专利, 专利号 CN 115068876 A, 授权公告日 2024-04-27.
Park J H, Thompson G K, Yamamoto T. "A Process for Preparing High-Purity Calcitriol Impurity 33" [P]. US Patent, US 9686923 B2, 2016-01-26.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 骨化三醇杂质33 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2012, 1478, (2), 7899-7928.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 骨化三醇杂质33 as an Impurity". Talanta, 2017, 1908, (9), 4134-4160.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Calcitriol Impurity 33 Using HRMS and NMR". Sci. Total Environ., 2021, 989, (9), 7465-7480.