Using CCOC(=O)c1cc(-c2cn(C(c3ccccc3)(c3ccccc3)c3ccccc3)cn2)n[nH]1 to produce O=C(O)c1cc(-c2cn(C(c3ccccc3)(c3ccccc3)c3ccccc3)cn2)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.