Using CC(C)(C)OC(=O)C(C)(C)Sc1nc(CCCN2C(=O)c3ccccc3C2=O)cs1 to produce CC(C)(C)OC(=O)C(C)(C)Sc1nc(CCCN)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.