You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R,3S)-3-hydroxy-N-[(3S,4R)-4-hydroxy-2-methylhexan-3-yl]-2-nonyl-N'-phenylmethoxybutanediamide into its molecular formula.
user
C27H46N2O5
assistant