1 C90 N-{(1s,2r)-2-hydroxy-1-[(hydroxyamino)carbonyl]propyl}-4-{[4-(morpholin-4-ylmethyl)phenyl]ethynyl}benzamide 1.000 2 81V N-[(2s,3s)-4,4-difluoro-3-hydroxy-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]-4-({4-[(morpholin-4-yl)methyl]phenyl}ethynyl)benzamide 0.914 3 L59 N-[(2s,3r)-3-hydroxy-1-(hydroxyamino)-1-oxobutan-2-yl]-4-(phenylethynyl)benzamide 0.781