N1-[(2-hydroxy-5-oxo-cyclopenten-1-yl)-2,3,4-tri-O-acetyl-(5S)-β-D-galactopyranuronamide]-(1-4)-2-acetamide-3-O-acetyl-2,6-dideoxy-β-D-glucopyranosyl-(1-4)-[2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1-6)-2-acetamido-3-O-acetyl-2-deoxy-β-D-glucopyranosyl]-(1-2)-3-O-carbamoyl-1H-(hydrogen phosphonate)-C-methyl-α-D-glucopyranuronamide ammonium salt 、
methyl (R)-2-[(2Z)-3,7-dimethyl-octa-2,6-dienyloxy]-3-hydroxypropionate 在
吡啶 、
金刚烷酰氯 、
N-甲基吗啉 、
水 作用下,
以
四氯化碳 、
乙腈 为溶剂,
以51%的产率得到N1-[(2-hydroxy-5-oxo-cyclopenten-1-yl)-2,3,4-tri-O-acetyl-(5S)-β-D-galactopyranuronamide]-(1-4)-2-acetamide-3-O-acetyl-2,6-dideoxy-β-D-glucopyranosyl-(1-4)-[2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1-6)-2-acetamido-3-O-acetyl-2-deoxy-β-D-glucopyranosyl]-(1-2)-3-O-carbamoyl-1H-{[(R)-2-methoxycarbonyl-2-(2-(Z)-3,7-dimethyl-octa-2,6-dien-1-yloxy)-ethoxy]-hydroxyphosphoryl}-4-C-methyl-α-D-glucopyranuronamide ammoinium salt