Using C1COCCO1, O=C1C(Br)=C(c2ccccc2)c2ccc(OCCN3CCOCC3)cc21 to produce O=C1C(c2cccnc2)=C(c2ccccc2)c2ccc(OCCN3CCOCC3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.