You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-(4-fluorophenyl)-2-[(2'-oxospiro[6H-furo[2,3-f][1,3]benzodioxole-7,3'-indole]-1'-yl)methyl]benzamide .
user
C30H21FN2O5
assistant