You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-N-[3-[3-[(1-hydroxy-1-phenylpropan-2-yl)amino]propanoyl]phenyl]-3-phenylprop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H28N2O3
assistant