Using CCOC(COc1ccc(F)nc1)OCC, Cc1cnc(Nc2ncnc3ccc(O)cc23)cn1 to produce CCOC(COc1ccc(Oc2ccc3ncnc(Nc4cnc(C)cn4)c3c2)nc1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.