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 2-amino-7-[(1R)-1-[(2R,3R)-1,3-dihydroxybutan-2-yl]oxy-2-fluoroethyl]-3H-pyrrolo[2,3-d]pyrimidin-4-one .
user
C12H17FN4O4
assistant