Using CSCC[C@@H](CO)NC(=O)C1(NC(=O)c2ccc(CN3CCOCC3)cc2)CCCCC1 to produce CSCC[C@@H](C=O)NC(=O)C1(NC(=O)c2ccc(CN3CCOCC3)cc2)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.