N-[[(3S,3aS)-6-[6-(6-cyano-3-azabicyclo[3.1.0]hexan-6-yl)pyridin-3-yl]-1-oxo-3a,4-dihydro-3H-[1,3]oxazolo[3,4-a]indol-3-yl]methyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.