Using O=C=Nc1ccccc1, CCc1cc(OC)c(OC)c(C(=O)O)c1N to produce COc1ccc2[nH]c(=O)n(-c3ccccc3)c(=O)c2c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.