You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (2R,4R)-7-[2-[4-(2-methylphenyl)sulfanylpiperidin-1-yl]-2-oxoethyl]-7,8-diazatricyclo[4.3.0.02,4]nona-1(6),8-diene-9-carboxylic acid ?
user
C22H25N3O3S
assistant