Using O=c1c(-c2ccccc2)cn(O)cc1-c1ccccc1, O=c1cccc[nH]1 to produce CC(=O)On1cc(-c2ccccc2)c(=O)c(-c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.