Using CC(N)=S, CC(C)(C)OC(=O)N1CCC(C(=O)O)CC1 to produce CC(=S)NC(=O)C1CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.