You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(1S,2S)-2-[[(2S,5S)-2-(6-aminopyridin-3-yl)-5-methylmorpholin-4-yl]methyl]cyclopropyl]-1-(1H-indol-2-yl)butan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H32N4O2
assistant