Using COc1ccc(CCNC(=O)C(=CN(C)C)c2ccc3c(c2)CCCC3)cc1OC, C1CCOC1 to produce COc1ccc(CCNC(=O)C(=CO)c2ccc3c(c2)CCCC3)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.