34340-20-0Relevant academic research and scientific papers
A 5, 4' - dihydroxy flavone - 7 - O - D - glucuronic acid preparation method
-
Paragraph 0088; 0089; 0090; 0091; 0092; 0125; 0126-0128, (2018/03/26)
The invention relates to the drug synthesis technical field, and in particular, relates to a preparation method of 5,4'-dihydroxy flavone-7-O-D-glucuronic acid. The method comprises the following steps: taking a compound having a structure represented by the formula II, and under an alkaline condition, acylating to obtain a compound having a structure represented by the formula III; taking the compound having the structure represented by the formula III and alpha-bromo triacetoxy methyl glucuronate, and carrying out a glycosylation reaction, to obtain a compound having a structure represented by the formula IV; taking the compound having the structure represented by the formula IV, and hydrolyzing under an acidic condition, to obtain a compound having a structure represented by the formula V; and taking the compound having the structure represented by the formula V, hydrolyzing under an alkaline condition, and thus obtaining the product. The method provided by the invention has the advantages of cheap and easily obtained starting raw materials, less reaction steps, and simple and easily operated process, and is suitable for large-scale industrialized production; and through testing, the purity of the obtained product can reach more than 98%, and the total yield reaches up to 56%.
