You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[2-[(3-methylthiophen-2-yl)methyl]-5-oxa-2-azaspiro[3.4]octan-8-yl]ethyl]-1,3-thiazole-4-carboxamide;2,2,2-trifluoroacetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H24F3N3O4S2
assistant