Using CCCCN, O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO to produce CCCCNCC(=O)[C@@H](O)[C@H](O)[C@H](O)CO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.