Using O=C(C=Cc1ccccc1)Nc1ccc(C(c2ccccc2)n2ccnc2)cc1 to produce O=c1ccc2cc(C(c3ccccc3)n3ccnc3)ccc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.