Using O=C(O)CN1CCC(O)C1=O, C[C@@H]1CCC[C@H](C)N1CCN to produce C[C@@H]1CCC[C@H](C)N1CCNC(=O)CN1CCC(O)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.