Using COc1ccc(Br)c(OC)c1, CC(C)(C)OC(=O)N1CCCNCC1 to produce COc1ccc(N2CCCN(C(=O)OC(C)(C)C)CC2)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.