UCHP Method for Oligosaccharide Combinatorial Library Synthesis
摘要:
A new methodology for oligosaccharide combinatorial library synthesis using a special hydroxy protecting group, the uni-chemo hydroxy protection (UCHP) group, was developed. The UCHP group was composed of oligomeric amino acid derivatives. The amino terminals of UCHP groups were protected by either Boc or Fmoc groups. By using these two types of UCHP, five kinds of trigalactoses [Gal beta 1-3Gal beta 1-3Gal, Gal beta 1-3(Gal beta 1-4) Gal, Gal beta 1-4Gal beta 1-3Gal, Gal beta 1-3Gal beta 1-4Gal, and Gal beta 1-4Gal beta 1-4Gal] were successfully synthesized on a solid support as a model of oligosaccharide combinatorial library. Each step of all reactions was also successfully monitored using a combination of two colorimetric tests, chloranil and methyl red-DIC.