Using CCOC(=O)[C@@H](N)CS, CC(C)(C)OC(=O)N1CCC(C=O)CC1 to produce CCOC(=O)C1CSC(C2CCN(C(=O)OC(C)(C)C)CC2)=N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.