Synthesis of Tertiary<i>sec</i>-Alkylamines by the Addition of Grignard Reagents to<i>N</i>,<i>N</i>-Dialkylformamides Mediated by Ti(O<i>i</i>Pr)<sub>4</sub>and Me<sub>3</sub>SiCl
作者:Olesya Tomashenko、Viktor Sokolov、Alexander Tomashevskiy、Herwig A. Buchholz、Urs Welz-Biermann、Vladimir Chaplinski、Armin de Meijere
The present disclosure provides inhibitors of activin receptor-like kinase 5 (ALK5). Also disclosed are methods to modulate the activity of ALK5 and methods of treatment of disorders mediated by ALK5.
An ionic liquid with an extremely low content of an impurity such as halogen ions which can be obtained easily at a relatively reduced cost, the ionic liquid comprising a pair of a cation K+ and an anion A- represented by the general formula (1) in which the content of an alkali metal as an impurity is 5 ppm or less and the content of a halogen ion is 1 ppm or less, the cation being preferably selected from the group represented by the following general formula (2) obtained by quarternizing a tertiary amine compound or a tertiary phosphine compound by using an acid ester represented by the following general formula (3) and then conducting salt exchange:
General formula (2):
General formula (3): ROY
in which R1 to R4 in the formula (2) each independently represents a linear or branched alkyl group of 1 to 8 carbon atoms, X represents a hetero atom and R in the formula (3) represents a linear or branched alkyl group of 1 to 8 carbon atoms.
COMPOSITIONS AND METHODS FOR INHIBITION OF THE JAK PATHWAY
申请人:Li Hui
公开号:US20120016122A1
公开(公告)日:2012-01-19
Disclosed are compounds of formula I, compositions containing them, and methods of use for the compounds and compositions in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK 2 and JAK3, are therapeutically useful.
The present disclosure provides inhibitors of activin receptor-like kinase 5 (ALK5). Also disclosed are methods to modulate the activity of ALK5 and methods of treatment of disorders mediated by ALK5.