You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[8-amino-2-(furan-2-yl)-[1,2,4]triazolo[1,5-a]pyrazin-6-yl]-3-methylnon-1-yn-3-ol .
user
C19H23N5O2
assistant