Using COc1cc2c(Cl)ncnc2c(OC)c1OC, NCc1ccc2c(c1)OCO2 to produce COc1cc2c(NCc3ccc4c(c3)OCO4)ncnc2c(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.