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 5-(cyclopropylamino)-3-methyl-7-[3-methylsulfonyl-4-[2-(oxepan-4-yl)propyl]phenyl]pyrido[4,3-d]pyrimidin-4-one ?
user
C27H34N4O4S
assistant