N-{3-[3-CYCLOPROPYL-5-(2-FLUORO-4-IODOPHENYLAMINO)-6,8-DIMETHYL-2,4,7-TRIOXO-3,4,6,7-TETRAHYDRO-2H-PYRIDO[4,3-D]PYRIMIDINE-1-IL]-PHENYL}-CYCLOPROPANECARBOXAMIDE DIMETHYLSULFOXIDE SOLVATE AS MEK1/2 INHIBITOR Russian patent published in 2017 - IPC C07D471/04 A61K31/519 A61P35/00 

Abstract RU 2627692 C1

FIELD: pharmacology.

SUBSTANCE: invention relates to a new compound, N-{3-[3-cyclopropyl-5-(2-fluoro-4-iodophenylamino)-6,8-dimethyl-2,4,7-trioxo-3,4,6,7-tetrahydro-2H-pyrido[4,3-d]pyrimidin-1-yl]-phenyl}-cyclopropanecarboxamide dimethylsulfoxide solvate of formula 1

,

which is a MEK, in particular MEK1, MEK2 and MEK1/2, inhibitor. The compound can be used to prevent and/or treat malignant melanomas. The invention also relates to a process for preparation of a compound of formula 1. The method consists in reaction of a compound of formula 2

or a salt thereof with a cyclopropanecarboxylic acid or an activated derivative thereof, followed by obtaining a crystalline solvate of the desired product while cooling the hot saturated solution in dimethylsulfoxide.

EFFECT: compound has lower toxicity with prolonged dosing.

10 cl, 7 ex, 3 tbl, 2 dwg

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RU 2 627 692 C1

Authors

Ivashchenko Aleksandr Vasilevich

Ignatev Vasilij Gennadevich

Repik Aleksej Evgenevich

Shafeev Mikhail Ajratovich

Dates

2017-08-10Published

2016-10-10Filed