(S)-2-[(2S,4aR,6R,7R,8R,8aS)-6-((2S,4aR,6R,7R,8R,8aR)-7-Amino-6-methoxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-7-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-3-phenyl-propionic acid benzyl ester 在
吡啶 、
对甲苯磺酸 、
乙硫醇 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 53.0h,
生成
methyl {2,4,6-tri-O-acetyl-3-O-[(S)-1-(benzyloxycarbonyl)-2-phenylethyl]-β-D-galactopyranosyl}-(1->3)-2-(acetylamino)-4,6-di-O-acetyl-2-deoxy-β-D-galactopyranoside