Using O=C1CCOCC1, CCOP(=O)(Cc1ccc(OC)cc1[N+](=O)[O-])OCC to produce COc1ccc(C=C2CCOCC2)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.