METHOD FOR OBTAINING DISPYROINDOLINONES BASED ON 5-INDOLIDENE-2-THIOHIDANTOINES Russian patent published in 2021 - IPC C07D487/20 A61K31/407 A61K31/4188 

Abstract RU 2756463 C1

FIELD: compounds production.

SUBSTANCE: invention relates to a method for producing a compound of general formula (I), which consists in a three-component reaction between the corresponding 5-indolidene-2-thiohydantoin, paraformaldehyde and the corresponding amino acid in a solvent, characterized in that for carrying out the reaction 1 molar eq. of the corresponding 5-indolidene-2-thiohydantoin is dissolved in toluene, or benzene, or dioxane, taken in an amount of 10 ml per 0.5 mmol of 5-indolidene-2-thiohydantoin, and heated until the mixture boils, after which the corresponding amino acid is added, taken from the calculation of 6 eq., and paraformaldehyde, taken in the amount of 4 eq. with respect to the corresponding 5-indolidene-2-thiohydantoin.

EFFECT: new method for the preparation of compounds of general formula (I) has been developed, which makes it possible to obtain compounds with a purity of at least 98%. The obtained compounds can be used as active ingredients for pharmaceutical compositions and drugs for the treatment of oncological diseases.

1 cl, 1 tbl, 43 ex

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RU 2 756 463 C1

Authors

Kukushkin Maksim Evgenevich

Beloglazkina Elena Kimovna

Novotortsev Vladimir Konstantinovich

Mazhuga Aleksandr Georgievich

Dates

2021-09-30Published

2020-11-22Filed