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-[(2'R,3R,3'R,5'R)-7-hexyl-3',5'-dihydroxy-5-pentylspiro[1,4-dihydroisochromene-3,4'-oxane]-2'-yl]pyrimidine-2,4-dione .
user
C28H40N2O6
assistant