(2R,3S,4S)-2-[(S)-(tert-Butyl-dimethyl-silanyloxy)-((4S,5R,4'S)-2,2,2',2'-tetramethyl-[4,4']bi[[1,3]dioxolanyl]-5-yl)-methyl]-3,4-dihydroxy-5-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester 在
lithium hydroxide 、
sodium periodate 作用下,
生成
2-(tert-butoxycarbonylamino)-3-O-(tert-butyldimethylsilyl)-2-deoxy-4,5:6,7-di-O-isopropylidene-L-glycero-L-galacto-heptose