Using CC(C)(C)OC(=O)CN1CC(c2cccs2)SC[C@H](N2C(=O)c3ccccc3C2=O)C1=O to produce CC(C)(C)OC(=O)CN1CC(c2cccs2)SC[C@H](N)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.