Using NC1c2cccc(-c3nc4ccncc4[nH]3)c2-n2cccc21, O=C(O)c1ccnc2[nH]ccc12 to produce O=C(NC1c2cccc(-c3nc4ccncc4[nH]3)c2-n2cccc21)c1ccnc2[nH]ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.