Using CC(C)(C)OC(=O)Nc1nc(NC2CCCN(C(=O)OC(C)(C)C)C2)ccc1C(=O)C(F)(F)F to produce Nc1nc(NC2CCCNC2)ccc1C(=O)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.