Using Cc1ccccc1-c1nc(C(=O)N2CCC(O)(c3ccccc3)CC2)cn1-c1ccc(Cl)cc1 to produce Cc1ccccc1-c1nc(C(=O)N2CC=C(c3ccccc3)CC2)cn1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.