(2S,3R,4E)-3-O-benzoyl-2-N-tetracosanoylsphingenine 、
O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-(1-4)-O-(2,3,6-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-2,3,6-tri-O-acetyl-α (and β-)D-glucopyranosyl fluoride 在
4 A molecular sieve 、 silver perchlorate 、 tin(ll) chloride 作用下,
以
氯仿 为溶剂,
反应 16.0h,
以29%的产率得到O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-(1-4)-O-(2,3,6-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-O-(2,3,6-tri-O-acetyl-β-D-glucopyranosyl)-(1-1)-(2S,3R,4E)-3-O-benzoyl-2-N-tetracosanoylsphingenine