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 (2R)-2-[(2-naphthalen-2-ylacetyl)amino]-3-phenyl-N-[(3R,4R,5S,6R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]propanamide .
user
C27H30N2O7
assistant