Using CCOC(COc1cnc(Cl)nc1)OCC, Cn1ccc(Nc2ncnc3ccc(O)cc23)n1 to produce CCOC(COc1cnc(Oc2ccc3ncnc(Nc4ccn(C)n4)c3c2)nc1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.