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 (2Z)-4-methyl-2-[(1-methylindol-3-yl)methylidene]-8-(thiophen-2-ylmethyl)-7,9-dihydrofuro[2,3-f][1,3]benzoxazin-3-one .
user
C26H22N2O3S
assistant