Using O=C(O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@@H]21, O=C1CCC(=O)N1O to produce O=C1NC2CSC(CCCCC(=O)ON3C(=O)CCC3=O)C2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.