Using Brc1ccccn1, Cc1ccn2c(-c3cccc(O)c3)cnc2c1 to produce Cc1ccn2c(-c3cccc(Oc4ccccn4)c3)cnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.