Efficient Synthesis of Glycosylated Asparaginic Acid Building Blocks via Click Chemistry
作者:Thomas Ziegler、Nikolas Pietrzik、Carsten Schips
DOI:10.1055/s-2008-1032150
日期:2008.2
4-tri- O-acetyl-6-azido-6-deoxy-1-thioglycosides (gluco, galacto, manno series), respectively (click chemistry). Thus obtained orthogonally protected L-asparaginic and ( S)-3-aminobutyric acids bearing an acetyl-protected glycose or glycoside moiety, linked through a triazole spacer, are suitable building blocks for combinatorial glycopeptide syntheses.
铜催化 1完全乙酰化的炔丙基 1-硫糖苷(葡萄糖、半乳糖、甘露糖和鼠李糖系列)和 Fmoc-L-Asp(O-T-Bu)炔丙基酰胺与叔丁基 (S)-4-azido-3 的 ,3-偶极环加成-芴基甲氧基氨基丁酸、2,3,4,6-三-O-乙酰-糖基叠氮化物和乙基 2,3,4-三-O-乙酰-6-叠氮基-6-脱氧-1-硫糖苷(葡萄糖、半乳糖、甘露糖)系列),分别(点击化学)。由此获得的正交保护的L-天冬酰胺酸和(S)-3-氨基丁酸带有乙酰基保护的糖或糖苷部分,通过三唑间隔物连接,是组合糖肽合成的合适构件。