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-[(4R,6S,7Z,14S)-4-(cyclobutylcarbamoyl)-2,15-dioxo-3,16-diazatricyclo[14.3.0.04,6]nonadec-7-en-14-yl]carbamate .
user
C27H42N4O5
assistant