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-[4-(5-methyl-4-morpholin-4-ylpyrimidin-2-yl)phenyl]-3-[4-(4-methylpiperazin-1-yl)phenyl]urea .
user
C27H33N7O2
assistant