Using COC(=O)C(Cc1cnc(Nc2ccccc2)nc1Nc1ccccc1)c1ccccc1OC to produce COc1ccccc1C1Cc2cnc(Nc3ccccc3)nc2N(c2ccccc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.