Patent ID: 8940901
Filing Date: 2015-01-27
Classification: A61P,C07D

Abstract:
1. A process for obtaining the compound of the formula I: or a stereoisomeric form of the compound of the formula I or a mixture of any stereoisomeric forms of the compound of the formula I in any ratio, wherein A2 is aminopyridyl, in which aminopyridyl is unsubstituted or substituted independently of one another once, twice or three times by halogen or methyl; Y is —(C R15 is an amino-protecting group; and Z is 1) —(C which process comprises A) reacting a compound of the formula IV: B) optionally, when the compound of the formula I prepared by process step A) is in enantiomeric forms, fractionating by salt formation with enantiopure acids or bases; or performing chromatography on chiral stationary phases; or derivatizing using chiral enantiopure compounds, separating the diastereomers obtained in this way, and eliminating the chiral auxiliary groups to obtain pure enantiomers.