[(2R,3R,4R,5S)-2,3,4,5-tetraacetyloxy-6-[[3-[(5R)-3,3-dibutyl-7-(dimethylamino)-1,1-dioxo-4,5-dihydro-2H-1lambda6,4-benzothiazepin-5-yl]phenyl]carbamoylamino]hexyl] acetate 在
甲醇 、
三乙胺 作用下,
反应 16.0h,
以60%的产率得到1-[3-[(5R)-3,3-dibutyl-7-(dimethylamino)-1,1-dioxo-4,5-dihydro-2H-1lambda6,4-benzothiazepin-5-yl]phenyl]-3-[(2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl]urea