作者:Yoshihide Tokuda、Yoichi Takahashi、Kaori Matoishi、Yukishige Ito、Takeshi Sugai
DOI:10.1055/s-2002-19355
日期:——
A short-step route to GlcNAc-Cbz-Asn was developed. Treatment of GIcNAc in sat. aq. NH 4 HCO 3 solution and subsequent electorodialytic desalting provided ammonia-free glycosylamine in large quantity. The product was coupled with Cbz-Asn α-isobutyl ester β-fluoride, and finally, the isobutyl ester was deprotected by enzyme-catalyzed hydrolysis under mild conditions.
开发了 GlcNAc-Cbz-Asn 的短步路线。饱和 GlcNAc 的处理。水 NH 4 HCO 3 溶液和随后的电渗析脱盐提供大量无氨糖胺。产物与Cbz-Asn α-异丁酯β-氟化物偶联,最后在温和条件下通过酶催化水解使异丁酯脱保护。