7-(5,5-difluoro-1,3,7,9-tetramethyl-5H-4λ4,5λ4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-10-yl)heptanoic acid 、
3-O-sulfo-1-O-β-D-galactosyl-erythro-sphingosine 在
(benzotriazol-1-yloxy)tris(dimethylamino)phosphonium salt 、
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 24.0h,
以46%的产率得到3-O-sulfo-D-galactosyl-β1-1'-N-[7-(4,4difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene-8-yl)heptanoyl]-erythro-sphingosine