Using CCN(CC)CC, O=C1c2cccc3c(Br)c(O)cc(c23)C(=O)N1O to produce CN1COc2cc3c4c(cccc4c21)C(=O)N(O)C3=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.