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 5-O'-benzyl 3-O'-propan-2-yl (3R)-2'-amino-6'-methyl-2-oxospiro[1H-indole-3,4'-pyran]-3',5'-dicarboxylate .
user
C25H24N2O6
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