Using O=c1[nH]c(=O)n(C2CC(OCc3ccccc3)C(COCc3ccccc3)C2O)cc1I, C=CC(=O)OC to produce COC(=O)C=Cc1cn(C2CC(OCc3ccccc3)C(COCc3ccccc3)C2O)c(=O)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.