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 4-amino-1-[(2R,3R,4S,5R)-2,3-diethyl-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-hydroxypyrimidin-2-one .
user
C13H21N3O5
assistant