Using COc1ccc(Cl)c(Nc2ncnc3cccc(OCC4CCN(C(=O)OC(C)(C)C)CC4)c23)c1 to produce COc1ccc(Cl)c(Nc2ncnc3cccc(OCC4CCN(C)CC4)c23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.