Using O=C([O-])[O-], CCCC1CC(=O)N(Cc2c(-c3ccccc3)nn3cc(O)cnc23)C1 to produce CCCC1CC(=O)N(Cc2c(-c3ccccc3)nn3cc(OC)cnc23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.