Using O=C(O)c1ccc(-c2ccccc2)nc1, CN1CCCc2ccc(N)cc21 to produce CN1CCCc2ccc(NC(=O)c3ccc(-c4ccccc4)nc3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.