US Patent 10336759 Salts and processes of preparing a PI3K inhibitor

The present application provides processes for 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 phosphoinositide 3-kinase-delta (PI3Kδ), as well as a salt form and intermediates related thereto.