FIELD: chemistry.
SUBSTANCE: invention relates to form A of N-(4-(7-azabicyclo[2.2.1]heptan-7-yl-)-2-(trifluoromethyl)phenyl)-4-oxo-5-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxamide, where said form A is characterised by peak at approximately 7.9 degree, peak at approximately 11.9 degree, peak at approximately 14.4 degree and peak at approximately 15.8 degree in powder X-ray. Invention also relates to pharmaceutical composition and set based on said form A, application of form A, method of CFTR modulation.
EFFECT: obtained is novel form of quinoline derivative, which is modulator of CFTR activity.
12 cl, 3 dwg, 2 tbl, 3 ex
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