Using CCOC(=O)c1nc(-c2ccc(N3CCOCC3)nc2)sc1NC(=O)OC(C)(C)C to produce CCOC(=O)c1nc(-c2ccc(N3CCOCC3)nc2)sc1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.