Please use this identifier to cite or link to this item: https://doi.org/10.1016/0031-9422(96)00291-9
Title: Flavans and A-type proanthocyanidins from Prunus prostrata
Authors: Bilia, A.R.
Morelli, I.
Hamburger, M. 
Hostettmann, K.
Keywords: 5,7,2',5'-tetrahydroxy-(2R,3R)- flavan-3-ol
7-methoxy-(+)-catechin
aerial parts
ent-epiafzalechin (2α → O → 7, 4α → 8) quercetin
Prunus prostrata
Rosaceae
Issue Date: Nov-1996
Source: Bilia, A.R., Morelli, I., Hamburger, M., Hostettmann, K. (1996-11). Flavans and A-type proanthocyanidins from Prunus prostrata. Phytochemistry 43 (4) : 887-892. ScholarBank@NUS Repository. https://doi.org/10.1016/0031-9422(96)00291-9
Abstract: A new natural dimeric A-type proanthocyanidin and two new monomeric flavanols have been isolated from Prunus prostrata and identified as ent- epiafzelechin (2α → O → 7, 4α → 8) quercetin, 5,7,2',5'-tetrahydroxy- (2R,3R)-flavan-3-ol and, 7-methoxy-(+)-catechin, respectively. The structurally related metabolites ent-epiafzelechin (2α → O → 7, 4α → 8) afzelechin, ent-epiafzelechin (2α → O → 7, 4α → 8) kaempferol, ent- epiafzelechin (2α → O → 7, 4α → 8) epicatechin, ent-epiafzelechin (2α → O → 7, 4α → 8) epiafzelechin, ent-epiafzelechin (2α → O → 7, 4α → 8) catechin, (+)-catechin and (-)-epicatechin were also isolated. Structure elucidation was achieved by extensive NMR (homo- and hetero-nuclear two- dimensional correlation, NOE difference, and selective INEPT experiments) and CD studies.
Source Title: Phytochemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/131476
ISSN: 00319422
DOI: 10.1016/0031-9422(96)00291-9
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