1 1JS N~1~-hydroxy-N~5~-(3-hydroxypropyl)-N~2~-[4-(phenylethynyl)benzoyl]-L-glutamamide 1.000 2 L59 N-[(2s,3r)-3-hydroxy-1-(hydroxyamino)-1-oxobutan-2-yl]-4-(phenylethynyl)benzamide 0.750