Using COCC(=O)NC1CCC(CNc2nc3c(s2)CCOc2ccccc2-3)CC1 to produce COCCNC1CCC(CNc2nc3c(s2)CCOc2ccccc2-3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.