You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 1-[6-[[(1S,3S)-3-[(5-methylsulfanylpyrimidin-2-yl)amino]cyclopentyl]amino]pyridin-3-yl]-4-phenylmethoxypyridin-2-one ?
user
C27H28N6O2S
assistant