You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[[(2R,2'S)-5-[(2S,6S)-2,6-dimethylmorpholin-4-yl]-2'-methylspiro[3H-furo[2,3-c]pyridine-2,4'-pyrrolidine]-1'-yl]methyl]-1,3-thiazol-2-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H31N5O3S
assistant