Using O=C1OC(=O)c2c1c(=O)[nH]c1ccccc21, Nc1ccccc1 to produce O=C1c2c(c3ccccc3[nH]c2=O)C(=O)N1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.