Using CCOC(=O)Cc1cccc(Br)c1, OB(O)c1ccc(N(Cc2ccccc2)Cc2ccccc2)cc1 to produce CCOC(=O)Cc1cccc(-c2ccc(N(Cc3ccccc3)Cc3ccccc3)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.