You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance methyl 4-hydroxy-1-[4-(6-methyl-1,2,4,5,8,10,12-heptazatricyclo[7.3.0.03,7]dodeca-2,5,7,9,11-pentaen-4-yl)phenyl]sulfonylpyrrolidine-2-carboxylate .
user
C18H18N8O5S
assistant