(2S,3S,4S)-4-Dimethylamino-5-methoxy-2,3-bis-triethylsilanyloxy-pentanoic acid [(S)-3-(4-formyl-oxazol-2-yl)-butyl]-amide 、 [(2R,3R,5R,7R,8R,9S)-9-[2-(benzenesulfonyl)ethyl]-7-[tert-butyl(dimethyl)silyl]oxy-2-[(1S)-1-methoxy-2-[(4S,5S,6R)-2,2,5-trimethyl-6-[(2R)-1-trimethylsilyloxypropan-2-yl]-1,3-dioxan-4-yl]ethyl]-4,4,8-trimethyl-1,10-dioxaspiro[4.5]decan-3-yl] bis(2-trimethylsilylethyl) phosphate 在
苯基锂 作用下,
生成