(2R,3S,4R,5S,6R)-2-(hydroxymethyl)-6-[2-[7-[2-[(2R,3S,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]ethynyl]spiro[fluorene-9,4'-piperidine]-2-yl]ethynyl]tetrahydropyran-3,4,5-triol 、
环丙甲酸 在
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以18 mg的产率得到[2,7-bis[2-[(2R,3S,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]ethynyl]spiro[fluorene-9,4'-piperidine]-1'-yl]cyclopropylmethanone