Synthetic Approach Toward the Partial Sequences of Betaglycan in the Linkage Region on Solid Support and in Solution Phase
作者:Jun‐ichi Tamura、Akihiro Yamaguchi、Junko Tanaka、Yuko Nishimura
DOI:10.1080/07328300701296810
日期:2007.4.30
We have synthesized, for the first time, the partial sequence of the betaglycan composed of the tetraosyl hexapeptide, which was directly usable as a probe for enzymatic glycosyl transfer. Stepwise elongation afforded the corresponding tetraosyl trichloroacetimidate. The common glycosyl dipeptide:[beta-D-GlcA-(1 -> 3)-beta-D-Gal-(1 -> 3)-beta-D-Gal-(1 -> 4)-beta-D- Xyl-(1 -> O)-Ser-Gly] was synthesized by glycosylation of the corresponding tetraosyl trichloroacetimidate and Ser-Gly moiety. The glycosyl dipeptide was coupled with other core peptide parts in solution phase and on a solid support. These glycosyl hexapeptides were then transformed into the desired target compounds.