You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(2R)-6-amino-1-[2-(2-hydroxyethyl)-2,7-diazaspiro[3.5]nonan-7-yl]-1-oxohexan-2-yl]-2-[[(2R)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanamide .
user
C39H59N7O5
assistant