Using COC(=O)CC(=O)OC, Nc1c(C=O)nnn1-c1ccccc1 to produce COC(=O)c1cc2nnn(-c3ccccc3)c2[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.