发明人韩伟,钱学锋,郑宇鹏. "Method for the Synthesis of 56394-22-0
6-bromanyl-4-methyl-2-oxidanylidene-chromene-3-carbonitrile
6-bromo-4-methyl-2-oxo-1-benzopyran-3-carbonitrile
A831031" [P]. 中国发明专利, 专利号 CN 116800130 A, 授权公告日 2021-12-06.
发明人林芳,赵玉洁,孙丽萍. "A Process for Preparing High-Purity 56394-22-0
6-bromanyl-4-methyl-2-oxidanylidene-chromene-3-carbonitrile
6-bromo-4-methyl-2-oxo-1-benzopyran-3-carbonitrile
A831031" [P]. 中国发明专利, 专利号 CN 115140305 B, 授权公告日 2024-06-01.
参考文献 Literature
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Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 6-溴-3-氰基-4-甲基香豆素 as an Impurity". J. Agric. Food Chem., 2022, 1012, (11), 191-220.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 56394-22-0
6-bromanyl-4-methyl-2-oxidanylidene-chromene-3-carbonitrile
6-bromo-4-methyl-2-oxo-1-benzopyran-3-carbonitrile
A831031 Using HRMS and NMR". Phytochemistry, 2015, 2069, 9146-9174.