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 tert-butyl N-[1-[[2-(butylamino)-1-(2-hydroxyphenyl)-2-oxoethyl]-(cyanomethyl)amino]-1-oxo-3-phenylpropan-2-yl]carbamate .
user
C28H36N4O5
assistant