(2S,4S,5R,6R)-4-Acetoxy-5-acetylamino-2-mercapto-6-((1R,2R)-1,2,3-triacetoxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 、
3,4,5-Tris-(2-{2-[2-(2-chloro-acetylamino)-ethoxy]-ethoxy}-ethoxy)-benzoic acid methyl ester 在
三乙胺 作用下,
以
乙腈 为溶剂,
以85%的产率得到methyl 3,4,5-tri-{8-[2-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)-acetamido]-3,6-dioxaoctyloxy}benzoate