Using COc1ccc(N2CCN(c3ccc(Nc4nc(-c5ccccc5)cs4)cc3)CC2)cc1, CCBr to produce CCN(c1ccc(N2CCN(c3ccc(OC)cc3)CC2)cc1)c1nc(-c2ccccc2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.