2,2-Dimethyl-propionic acid 2-{(2R,3S)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-[2-(tert-butyl-diphenyl-silanyloxy)-acetylsulfanyl]-4-oxo-azetidin-1-yl}-2-(triphenyl-λ
5-phosphanyl)-acetoxymethyl ester 在
四丁基氟化铵 作用下,
反应 4.0h,
生成
(5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-3-(2,2,2-trichloro-acetylcarbamoyloxymethyl)-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester