Using CC(C)(C)OC(=O)NCCBr, O=c1[nH]cc(Br)cc1N1CCOCC1 to produce CC(C)(C)OC(=O)NCCn1cc(Br)cc(N2CCOCC2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.