You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2S,3R)-2-methyl-1-azabicyclo[2.2.2]octan-3-yl]-3-(3-oxothiomorpholin-4-yl)furo[2,3-c]pyridine-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H24N4O3S
assistant