Crystalline forms of 3-(2,6-dichloro-3,5-dimethoxy-phenyl)-1-{6-[4-(4-ethyl-piperazin-1-yl) -phenylamino]-pyrimidin-4-yl}-1-methyl-urea and salts thereof
US9067896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2010 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Feb 24, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present technology provides novel anhydrous and hydrated crystalline forms of 3-(2,6-dichloro-3,5-dimethoxy-phenyl)-1-{6-[4-(4-ethyl-piperazin-1-yl)-phenylamino]-pyrimidin-4-yl}-1-methyl-urea, amorphous and anhydrous crystalline polymorphs of its monophosphoric acid salt, and the hydrochloride salt, including its dihydrate. The present technology further provides methods for preparing the various forms, compositions containing them, and methods of treatment employing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.