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-[5-tert-butyl-3-(methanesulfonamido)-2-methoxyphenyl]-3-[4-[2-[3-cyano-4-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]anilino]pyridin-4-yl]oxynaphthalen-1-yl]urea ?
user
C42H48N6O9S
assistant