Heptyl S-(2,3,4-tri-O-acetyl-α-L-fucopyranosyl)-(1->3)-2,6-di-O-benzoyl-4-thio-β-D-glucopyranoside 、 (2S,4S,5R,6R)-4-Acetoxy-2-((2R,3S,4S,5R,6R)-3-acetoxy-2-acetoxymethyl-5-benzoyloxy-6-bromo-tetrahydro-pyran-4-ylsulfanyl)-5-acetylamino-6-((1R,2R)-1,2,3-triacetoxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
sodium hydride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以70%的产率得到Heptyl S-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonate)-(2->3)-S-(4,6-di-O-acetyl-2-O-benzoyl-3-thio-β-D-galactopyransyl)-(1->4)-S-<2,3,4-tri-O-acetyl-α-L-fucopyranosyl>-(1->3)-2,6-di-O-benzoyl...