You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(3-amino-6-methylthieno[2,3-b]pyridin-2-yl)-2-[2-[3-(2-methylpyridin-4-yl)-4-piperazin-1-ylphenyl]ethylamino]ethanone into its molecular formula.
user
C28H32N6OS
assistant