(Pseudo)amide-linked oligosaccharide mimetics: molecular recognition and supramolecular properties

• José L. Jiménez Blanco,
• Fernando Ortega-Caballero,
• Carmen Ortiz Mellet and
• José M. García Fernández

Beilstein J. Org. Chem. 2010, 6, No. 20, doi:10.3762/bjoc.6.20

• pseudooligosaccharides having cyanamide, urea and thiourea-linkages via the Staudinger reaction have been reported [69][70]. In our group, the carbodiimide approach was used to prepare calystegine B2 analogues with the urea-linked disaccharide structure (Figure 15). These compounds, however, did not show inhibitory

Synthesis of coumarin or ferrocene labeled nucleosides via Staudinger ligation

• Ivana Kosiova,
• Andrea Janicova and
• Pavol Kois

Beilstein J. Org. Chem. 2006, 2, No. 23, doi:10.1186/1860-5397-2-23

• synthesised from 5'-tosylated intermediates, [36] whilst 3'-azido-3'-deoxythymidine 6 was prepared via a Mitsunobu type reaction. [37] Staudinger reaction of azidonucleosides 3–6 with triphenylphosphine led to iminophosphorane intermediates 7–10, which reacted subsequently with active esters of coumarin-4