You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-(N-[2-(benzotriazol-1-yl)acetyl]anilino)-N-(furan-2-ylmethyl)-2-phenylacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H23N5O3
assistant