You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[3-[6,7-bis(2-methoxyethoxy)quinazolin-4-yl]oxyphenyl]-3-(5-tert-butyl-1,2-oxazol-3-yl)urea ?
user
C28H33N5O7
assistant