Using COC(=O)c1ccc2c(c1)c(=O)[nH]c1nccc(Nc3ccc(NC(=O)c4ccccc4)cc3)c12 to produce O=C(O)c1ccc2c(c1)c(=O)[nH]c1nccc(Nc3ccc(NC(=O)c4ccccc4)cc3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.