Using NCC1CCOc2cc(S(=O)(=O)c3ccccc3)ccc21, N#CO[K] to produce NC(=O)NCC1CCOc2cc(S(=O)(=O)c3ccccc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.