You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2S,3R,5R)-3-[(4-amino-1,3,5-triazin-2-yl)-methylamino]-5-[(S)-(3,4-difluorophenyl)-hydroxymethyl]cyclopentane-1,2-diol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19F2N5O3
assistant