Figure 9: Synthesis of heneicosafuranosyl arabinogalactan (1). | Nature Communications

Figure 9: Synthesis of heneicosafuranosyl arabinogalactan (1).

From: [Au]/[Ag]-catalysed expedient synthesis of branched heneicosafuranosyl arabinogalactan motif of Mycobacterium tuberculosis cell wall

Figure 9

Reagents and conditions: (a) Py·HF, THF:Py (5:1), 0 °C→25 °C, 4 h, 85%. (b) AuCl3 (7 mol%), AgOTf (7 mol%), CH2Cl2, 4 Å MS powder, 25 °C, 24 h, 71%. (c) 0.5M NaOMe, MeOH, CH2Cl2, 4 h, 25 °C, 74%.

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