(2S,5S)-5-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-2-methyl-4-oxo-6-phenyl-hexanoic acid methyl ester 在
sodium tetrahydroborate 作用下,
生成 (2S,4R,5S)-4-Hydroxy-5-(2-hydroxymethyl-benzoylamino)-2-methyl-6-phenyl-hexanoic acid methyl ester 、 (2S,4S,5S)-4-Hydroxy-5-(2-hydroxymethyl-benzoylamino)-2-methyl-6-phenyl-hexanoic acid methyl ester