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 1-[5-tert-butyl-2-[4-[2-(dimethylamino)ethyl]-2,2-dimethyl-3-oxopiperazine-1-carbonyl]thiophen-3-yl]-3-(2,3-dichloro-4-fluorophenyl)urea .
user
C26H34Cl2FN5O3S
assistant