Name the molecular formula for the molecule established as [3-fluoro-2-(1-hydroxy-3,4,6,7,8,9-hexahydro-1H-pyrazino[1,2-a]indol-2-yl)-6-[1-methyl-5-[[5-[4-(oxetan-3-yl)piperazin-1-yl]pyridin-2-yl]amino]-6-oxopyridin-3-yl]phenyl]methyl acetate using the IUPAC nomenclature.