(7R,9aS)-7-(4-fluorophenoxy)methyl-2-(5-fluoropyrimidin-2-yl)-2,3,4,6,7,8,9,9a-octahydro-1H-pyrido(1,2-a)pyrazine
(7r,9as)-7-(4-fluorophenoxy)methyl-2-(5-fluoropyrimidin-2-yl)-2,3,4,6,7,8,9,9a-octahydro-1h-pyrido(1,2-a)pyrazine