Using COc1ccc(CNc2nc3ccc(Br)cc3nc2CCC(=O)O)cc1, NCC1CCCCC1 to produce COc1ccc(CNc2nc3ccc(Br)cc3nc2CCC(=O)NCC2CCCCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.