Using Cc1cc(N)n[nH]1, O=Cc1ccncc1N1CCN(c2ccc3ncsc3c2)C1=O to produce Cc1cc(NCc2ccncc2N2CCN(c3ccc4ncsc4c3)C2=O)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.