Using CCOP(=O)(Cc1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1)OCC, COc1ncc(Br)cc1C=O to produce COc1ncc(Br)cc1/C=C/c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.