You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-methyl-N-(2-methylpropyl)-N-[(3-phenyl-5-thiomorpholin-4-yl-1,2-oxazol-4-yl)methyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H31N3O2S
assistant