Using CN(CCN1CCOc2ccc(NC(=N)c3cccs3)cc21)C(=O)OC(C)(C)C to produce CNCCN1CCOc2ccc(NC(=N)c3cccs3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.