Oligomeric proanthocyanidin glycosides of Rhodiola pamiroalaica. II

In a continuation of investigations of proanthocyanidins of the roots of Rhodiola pamiroalaica, we have isolated proanthocyanidins RP-3 and RP-4. Their compositions, structures, and relative configurations have been investigated: RP-3 is 7-O-(6-O-galloyl-beta-D-Glcp)-3-O-galloyl-(-)-epigallocatechin...

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Bibliographic Details
Published inChemistry of natural compounds Vol. 35; no. 1; pp. 33 - 38
Main Authors Ismailov, AE, Kuliev, ZA, Vdovin, AD, Abdullaev, ND, Murzubraimov, BM
Format Journal Article
LanguageEnglish
Published NEW YORK PLENUM PUBL CORP 01.01.1999
Subjects
Chemistry
Chemistry, Medicinal
Chemistry, Organic
Life Sciences & Biomedicine
Pharmacology & Pharmacy
Physical Sciences
Science & Technology
SPECTROSCOPY
PROCYANIDINS
TANNINS
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Summary:In a continuation of investigations of proanthocyanidins of the roots of Rhodiola pamiroalaica, we have isolated proanthocyanidins RP-3 and RP-4. Their compositions, structures, and relative configurations have been investigated: RP-3 is 7-O-(6-O-galloyl-beta-D-Glcp)-3-O-galloyl-(-)-epigallocatechin-(4 beta-8)-[(-)epicatechin-(4 beta-8)-(3-O-galloyl-(-)-epigallocatechin)](2)-(4 beta-8)-[5-O-(beta-D-Glcp) (6) under right arrow O-beta-D-Glcp)-(+)-catechin], and RP-4 is 7-O-(6-O-galloyl-beta-D-Glcp-3-O-galloyl-(-)-epigallocatechin-(4 beta-8)-[3-O-galloyl-(-)-epicatechin]-(4 beta-8)-[3-O-galloyl-(-)-epigallocatechin]-(4 beta-8)-[3-O-galloyl-(-)-epicatechin]-(4 beta-8)-[3-O-galloyl-5-(beta-D-Glcp-(6) under right arrow O-beta-D-Glcp)-(-)-epigallocatechin.
ISSN:0009-3130
DOI:10.1007/BF02238206