Synthesis of New Peptidic Glycoclusters Derived from .BETA.-Alanine. Part 2: Optionally Modulated Distance between Side-Chain Branched Points
作者:Noriyasu Hada、Koji Sato、Yuhua Jin、Tadahiro Takeda
DOI:10.1248/cpb.53.1131
日期:——
The synthesis of an asymmetric glycocluster 1 has been achieved using two glycocluster units 12 and 13, prepared by coupling the cluster chain unit 4 with each ω-amino acid (β-alanine and 6-aminocapronic acid) trichloroethyl ester, and peptidic C-terminal block glycocluster 16, prepared by coupling the bifunctional linker 14 with sugar unit 9. This method facilitated the synthesis of the cluster optionally modulated the distance between the side-chain branched points by using various ω-amino acids. We also synthesized glycodendron 2 using the same intermediate.
不对称糖簇1的合成已成功实现,使用了两个糖簇单元12和13,它们是通过将簇链单元4与每个ω-氨基酸(β-丙氨酸和6-氨基己酸)三氯乙酸酯偶联而制备的,以及通过将双功能连接器14与糖单元9偶联所制备的肽链C末端区块糖簇16。这种方法促进了糖簇的合成,并通过使用各种ω-氨基酸选择性地调节了侧链分支点之间的距离。我们还使用相同的中间体合成了糖树 dendron 2。