Using COC(=O)c1ccccc1-c1ccc(Cc2nc(-c3ccccc3)nc3ccccc23)cc1 to produce O=C(O)c1ccccc1-c1ccc(Cc2nc(-c3ccccc3)nc3ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.