You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-[(2S)-1-amino-3-cyclohexyl-1-oxopropan-2-yl]-1-(piperidine-4-carbonyl)-4-(pyridine-3-carbonyl)piperazine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H38N6O4
assistant