You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R,2R,3R)-2,3-dimethylcyclohexyl]-3-methyl-6-thiophen-2-yl-[1,2]oxazolo[5,4-b]pyridine-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H23N3O2S
assistant