Using Nc1ccn2cc(-c3ccccc3)nc2n1, COC(=O)c1ncc(Br)cc1C to produce Cc1cc(Br)cnc1C(=O)Nc1ccn2cc(-c3ccccc3)nc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.