You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl N-[(9R,14S)-14-amino-9-(2-oxo-3H-1,3-thiazol-4-yl)-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2(7),3,5,15-pentaen-5-yl]carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H24N6O3S
assistant