Using O=C([O-])[O-], O=C(O)CCCNC(=O)NC12CC3CC(CC(C3)C1)C2 to produce COC(=O)CCCNC(=O)NC12CC3CC(CC(C3)C1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.