Using COC(=O)c1cnc2c(c1)C[C@@]1(C2)C(=O)Nc2ncccc21 to produce O=C(O)c1cnc2c(c1)C[C@@]1(C2)C(=O)Nc2ncccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.