Patent ID: 8507673
Filing Date: 2013-08-13
Classification: C07D

Abstract:
1. A process for preparing compounds of Formula I: or salts thereof, wherein R R R R comprising: (a) reacting a compound of Formula II: wherein R X is F, Cl, Br, or I; R R with a compound of Formula III: wherein R R in a solvent system comprising water and one or more organic solvents, optionally in the presence of a base; and (b) deprotecting the resulting compound to produce a compound of Formula I or a salt thereof; wherein each alkyl group may be optionally substituted by one or more halo, alkyl, lower alkyl, alkenyl, cycloalkyl, acyl, hydroxy, hydroxyalkyl, heterocyclic, heteroaryl, aryl, amino, aminoalkyl, —NR