Using COC(=O)CNC(=O)c1cccc2c1Cc1c-2[nH]c(=O)c2nccn12 to produce O=C(O)CNC(=O)c1cccc2c1Cc1c-2[nH]c(=O)c2nccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.