You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[(3S)-2,3-dihydro-1,4-benzodioxin-3-yl]methyl]thieno[3,2-d]pyrimidin-4-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H13N3O2S
assistant