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The first total synthesis of calabricoside A

✍ Scribed by Yuguo Du; Guohua Wei; Robert J. Linhardt

Book ID
104254292
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
164 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

Quercetin 3-O-[a-L-rhamnopyranosyl-(12)-a-L-arabinopyranoside]-7-O-b-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 CH 2 Cl 2 .

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