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 (2R,3R,4R)-2-(1,3-benzodioxol-5-yl)-3,4,5,6-tetramethoxy-3,4-dihydro-2H-furo[2,3-h]chromene .
user
C22H22O8
assistant