Acetic acid (2R,3S,4R,5R,6S)-3-acetoxy-2-acetoxymethyl-6-[(2S,3R,4S,5R,6R)-6-allyloxy-4,5-bis-(tert-butyl-dimethyl-silanyloxy)-2-carbamoyl-tetrahydro-pyran-3-yloxy]-5-(2,2,2-trichloro-acetylamino)-tetrahydro-pyran-4-yl ester 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
甲苯 为溶剂,
反应 1.5h,
以23%的产率得到Acetic acid (2R,3S,4R,5R,6S)-3-acetoxy-2-acetoxymethyl-5-acetylamino-6-[(2S,3S,4S,5R,6R)-6-allyloxy-5-(tert-butyl-dimethyl-silanyloxy)-2-carbamoyl-4-hydroxy-tetrahydro-pyran-3-yloxy]-tetrahydro-pyran-4-yl ester