You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[1-(cyclohexylmethyl)-2-[(5-ethoxypyridin-2-yl)methyl]pyrrolo[2,3-b]pyridin-5-yl]-1-methyl-1-propan-2-ylurea is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H37N5O2
assistant