(4R)-4-(3-((1S)-1-(4-amino-3-methyl-1H-pyrazolo(3,4-d)pyrimidin-1-yl)ethyl)-5-chloro-2-ethoxy-6-fluorophenyl)pyrrolidin-2-one
(4r)-4-(3-((1s)-1-(4-amino-3-methyl-1h-pyrazolo(3,4-d)pyrimidin-1-yl)ethyl)-5-chloro-2-ethoxy-6-fluorophenyl)pyrrolidin-2-one