You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-5-[tert-butyl(dimethyl)silyl]-2-[[4-oxo-4-[[(1R)-1-phenylethyl]amino]butanoyl]amino]pent-4-ynoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H34N2O4Si
assistant