双水杨酸酯 、
[(3R)-4-[[3-[2-(2-aminoethyldisulfanyl)ethylamino]-3-oxopropyl]amino]-3-hydroxy-2,2-dimethyl-4-oxobutyl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.5h,
以75%的产率得到[2-[2-[2-[3-[[(2R)-2-hydroxy-4-[(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl]oxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethyldisulfanyl]ethylcarbamoyl]phenyl] 2-hydroxybenzoate