Using Cn1c(Oc2ccc(N=C(c3ccccc3)c3ccccc3)cc2)nc2ccccc21 to produce Cn1c(Oc2ccc(N)cc2)nc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.