You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R)-N-[(1R,2R)-2,6-dimethyl-2,3-dihydro-1H-inden-1-yl]-2-oxo-1,3-thiazolidine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H18N2O2S
assistant