(4R,5R)-5-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-dihydro-furan-2-one 在
MoO5*pyridine*HMPA 、
lithium hexamethyldisilazane 作用下,
反应 0.5h,
生成 (3S,4R,5S)-5-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-3-hydroxy-4-methyl-dihydro-furan-2-one 、 (3R,4R,5S)-5-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-3-hydroxy-4-methyl-dihydro-furan-2-one