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 2-[(3-cyanophenyl)carbamoyl-propan-2-ylamino]-N-[2-(3,4-dimethoxyphenyl)ethyl]-N-(thiophen-2-ylmethyl)acetamide .
user
C28H32N4O4S
assistant