(2S,5R)-2-(dimethylaminomethyl)-5-phenylpyrrolidine 、 3-(dimethylamino)-5-[3-[[(3S,4R,5R)-4-[(1S)-1-hydroxyethyl]-5-(hydroxymethyl)-3-[[(1S,2S,3S,5R)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]carbamoyl]-1,2-oxazolidin-2-yl]methyl]-2-methoxyphenyl]benzoic acid 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以45%的产率得到(3S,4R,5R)-2-[[3-[3-(dimethylamino)-5-[(2S,5R)-2-[(dimethylamino)methyl]-5-phenylpyrrolidine-1-carbonyl]phenyl]-2-methoxyphenyl]methyl]-4-[(1S)-1-hydroxyethyl]-5-(hydroxymethyl)-N-[(1S,2S,3S,5R)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]-1,2-oxazolidine-3-carboxamide