You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S)-3-[[2,3-difluoro-4-[4-(pyrimidin-2-ylamino)piperidin-1-yl]benzoyl]amino]-2-(phenylmethoxycarbonylamino)propanoic acid .
user
C27H28F2N6O5
assistant