Using NCc1ccccc1, NC(=O)c1ccc(Sc2ccc(C=O)cc2)nc1 to produce NC(=O)c1ccc(Sc2ccc(CNCc3ccccc3)cc2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.