Using O=C(c1ccc(O)cc1)c1ccc(OCCCl)cc1, CCC(=O)c1ccc2[nH]ncc2c1 to produce CCC(=C(c1ccc(O)cc1)c1ccc(OCCCl)cc1)c1ccc2[nH]ncc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.