1 4NH 4-({4-[(4-aminobut-2-ynyl)oxy]phenyl}sulfonyl)-N-hydroxy-2,2-dimethylthiomorpholine-3-carboxamide 1.000 2 IH6 (3s)-4-{[4-(but-2-ynyloxy)phenyl]sulfonyl}-N-hydroxy-2,2-dimethylthiomorpholine-3-carboxamide 0.963 3 MM3 N-hydroxy-4-[(4-methoxylphenyl)sulfonyl]-2,2-dimethyl-hexahydro-1,4-thiazepine-3(S)-carboxamide 0.759