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 identified by 2-[2-[4-[4-[2-[5-amino-8-(furan-2-yl)-1-methyl-2-oxo-[1,2,4]triazolo[5,1-f]purin-3-yl]ethyl]piperazin-1-yl]-3-fluorophenoxy]ethylamino]acetamide ?
user
C27H32FN11O4
assistant