2-aminododecyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosyl)onate-(2->3)-2,4,6-tri-O-acetyl-β-D-galactopyranosyl-(1->4)-2,3,6-tri-O-acetyl-β-D-glucopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 15.0h,
以94.4%的产率得到(2S,4S,5R,6R)-5-acetamido-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-6-(2-aminododecoxy)-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid