The disaccharide moiety of the antibiotic mannopeptimycin has been synthesized as a (N-phenyl)trifluoroacetimidate donor, the reactivity of which was tested in conjugation with a 4-alkylidene-β-lactam acceptor. Key steps of the synthesis were Bi(OTf)3-catalyzed glycosidations that proceeded in short times and with high yields and stereocontrol. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany
抗生素甘露肽霉素的二糖部分已合成为(N-苯基)三
氟乙
酰亚胺供体,其反应性在与 4-亚烷基-β-内酰胺受体结合时进行了测试。合成的关键步骤是 Bi(OTf)3 催化的糖苷化,其在短时间内以高产率和立体控制进行。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)