Synthesis of Glycidol- and Sugar-Derived Bicyclic β- and γ/δ-Amino Acids for Peptidomimetic Design
作者:Elisa Danieli、Andrea Trabocchi、Gloria Menchi、Antonio Guarna
DOI:10.1002/ejoc.200500386
日期:2005.10
Constrained bicyclic β- and γ/δ-amino acids using glycidol and sugar derivatives were developed. The synthetic strategies involved epoxide ring opening of a glycidol derivative, and subsequent coupling with sugar-derived amines, leading to di- or trisubstitued bicyclic scaffolds after cyclisation with trifluoroacetic acid. Achievement of β- or γ/δ-amino acids was accomplished by changing the protecting
开发了使用缩水甘油和糖衍生物的受限双环β-和γ/δ-氨基酸。合成策略涉及缩水甘油衍生物的环氧化物开环,以及随后与糖衍生的胺偶联,在用三氟乙酸环化后产生二或三取代的双环支架。β-或γ/δ-氨基酸的实现是通过改变起始材料的保护基策略来实现的。通过使用酸和碱不稳定的树脂制备模型肽模拟物来评估支架与固相肽合成的相容性,从而为肽模拟物设计提供新工具。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)