Using CC(C(=O)O)n1nnc2ccc(OCc3ccccc3)cc21, O=C([O-])[O-] to produce COC(=O)C(C)n1nnc2ccc(OCc3ccccc3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.