Using CN1CCOCC1, CC(C)(C)OC(=O)N[C@H]1CCS[C@H]2CCC[C@@H](C(=O)O)N2C1=O to produce CC(C)(C)OC(=O)N[C@H]1CCS[C@H]2CCC[C@@H](C(N)=O)N2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.