You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9H-fluoren-9-ylmethyl N-[(2R)-1-[[(2S)-1-[4-(hydroxymethyl)anilino]-6-(methylamino)-1-oxohexan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C38H42N4O5
assistant