Using BrCCCBr, CCOc1ccccc1N1CCCN(CCCCOc2ccc3ccc(=O)[nH]c3c2)CC1 to produce O=c1ccc2ccc(OCCCBr)cc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.