Using Cn1c(Nc2ccc(Cl)cc2)nc2cc(Oc3ccnc(N)c3)ccc21, O=C(O)c1ccccc1 to produce Cn1c(Nc2ccc(Cl)cc2)nc2cc(Oc3ccnc(NC(=O)c4ccccc4)c3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.