Using COC(=O)c1[nH]nnc1C(=O)Nc1ccn2cc(-c3ccccc3)nc2n1 to produce O=C(Nc1ccn2cc(-c3ccccc3)nc2n1)c1nn[nH]c1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.