You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[(2S)-2-hydroxy-3-prop-2-ynoxypropyl]-propan-2-ylamino]-1-[(4R)-4-[(4-methylphenoxy)methyl]-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34N2O4S
assistant