Using O=C(O)c1ccc(-c2cnccn2)cc1, Cc1cc(-c2ccc(CN)cn2)ccn1 to produce Cc1cc(-c2ccc(CNC(=O)c3ccc(-c4cnccn4)cc3)cn2)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.