The First Total Synthesis of Calabricoside A

Du, Yuguo
Wei, Guohua
Linhardt, Robert J.
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Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
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The First Total Synthesis of Calabricoside A, Y. Du, G. Wei, R. J. Linhardt, Tetrahedron Letters, 44, 6887-6890, 2003.
Quercetin 3-O-[α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranoside]-7-O-β-d-glucopyranoside (calabricoside A), a new flavonol triglycoside isolated from the aerial parts of Putoria calabrica showing strong radical scavenging activity, was synthesized through a combination of phase-transfer-catalyzed C-3 glycosylation and AgOTf promoted homogeneous C-7 glycosylation in CH2Cl2.
Tetrahedron Letters, 44, 6887-6890
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Tetrahedron Letters