Using NNc1cc(N2CCOCC2)ncn1, CCOC(=O)C(=CN(C)C)c1cncc(Br)c1 to produce O=c1c(-c2cncc(Br)c2)c[nH]n1-c1cc(N2CCOCC2)ncn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.