abstract |
The present invention relates to methods of preparing (r) -4- (3 - ((s) -1- (4-amino-3-methyl-1h-pyrazolo [3,4-d] pyrimidin-1-yl) ethyl) -5-chloro-2-ethoxy-6-fluorophenyl) pyrrolidin-2-one, which is useful as an inhibitor of phosphoinositide 3-kinase-delta (pi3kδ), as well as a salt form and intermediates associates. |