POLYMORPHOUS FORMS OF ICOTINIB MALEATE AND USES THEREOF Russian patent published in 2019 - IPC C07D491/56 A61K31/519 A61P35/00 

Abstract RU 2708079 C2

FIELD: chemistry.

SUBSTANCE: invention relates to polymorphous form of compound of formula I

formula I.

Polymorphic form relates to form II, and its X-ray powder diffraction pattern has characteristic peaks at diffraction angles 2θ, making approximately 7.5°, 19.0° and 31.2° ± 0.2°. Also disclosed is a method of producing a polymorphous form.

EFFECT: presented polymorphous form II has higher bioavailability.

7 cl, 3 dwg, 1 tbl, 26 ex

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RU 2 708 079 C2

Authors

Hu, Shaojing

Long, Wei

Wang, Fei

Wang, Yinxiang

Ding, Lieming

Dates

2019-12-04Published

2014-06-09Filed