4-(9-(1-(BUT-2-YNOYL)PYRROLIDIN-2-YL)-4-METHYL-2-OXO-2H-IMIDAZO(5',1':3,4)PYRAZINO(1,2-A)PYRIMIDIN-11-YL)-N-(PYRIDIN-2-YL)BENZAMIDE, (S)-
4-(9-(1-(but-2-ynoyl)pyrrolidin-2-yl)-4-methyl-2-oxo-2h-imidazo(5',1':3,4)pyrazino(1,2-a)pyrimidin-11-yl)-n-(pyridin-2-yl)benzamide, (s)-