Using CC(C)(C)N(CCN1CCC(Nc2nc3ccccc3n2COCCc2cccc(Br)n2)CC1)C(=O)[O-] to produce NCCN1CCC(Nc2nc3ccccc3n2COCCc2cccc(Br)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.