METHOD OF OBTAINING PATULETINE AND PATULETINE-7-O-β-D-GLUCOPYRANOSIDE (PATULETRINE) FROM VEGETABLE RAW MATERIAL Russian patent published in 2015 - IPC A61K36/28 B01D11/02 

FIELD: chemistry.

SUBSTANCE: invention relates to method of simultaneous obtaining of two flavonoids - patuletine and its 7-O-β-D-glucopyranoside - patuletrine. Method consists in the following: milled edge petals of flower of high flavonoid sorts of tagetes patula are extracted with hexane, dried and r-extracted with chloroform, chloroform extract is concentrated, dry residue is dissolved in mixture of petroleum ether - chloroform, precipitated sediment is filtered, washed with petroleum ether and dried, obtained dry powder is dissolved in mixture chloroform - ethanol, precipitated sediment is filtered, washed with petroleum ether and dried with obtaining patuletine. Then, extraction of raw material, which remains after chloroform processing, is carried out with ethanol, alcohol extract is filtered and concentrated, after that, water residue is subjected to liquid phase extraction with ethylacetate, then, organic layer is concentrated, dry residue is dissolved in mixture chloroform - ethylacetate, precipitated sediment is filtered, washed with cooled ethylacetate, solution of hydrochloric acid in ethanol, ethanol and ethylacetate and dried, dry powder is dissolved in mixture ethylacetate-ethanol, precipitated sediment is filtered, washed with ethylacetate and dried with obtaining patuletrine.

EFFECT: method makes it possible to obtain highly pure samples of patuletine and patuletrine, as well as increase target product output.

4 dwg, 3 tbl, 4 ex