Using CC(C)(C)OC(=O)N1CCC(c2cc3ccccc3c(=O)[nH]2)CC1CO to produce O=c1[nH]c(C2CCNC(CO)C2)cc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.