TY - JOUR
T1 - Tannins and Related Compounds. Proanthocyanidins with a Doubly Linked Unit from the Root Bark of Cinnamomum sieboldii Meisner
AU - Morimoto, Satoshi
AU - Nonaka, Gen ichiro
AU - Nishioka, Itsuo
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1985
Y1 - 1985
N2 - A proanthocyanidin trimer (1), two tetramers (2 and 3) and a pentamer (4) have been isolated from the root bark of Cinnamomum sieboldii Meisner (Lauraceae). The structures of these compounds were established by acid-catalyzed thiolytic degradation, in conjunction with proton and carbon-13 nuclear magnetic resonance analyses. In addition, the presence of (-)-epicatechin (13), (+)-catechin (14) and known proanthocyanidins B-1 (5), B-2 (6) and B-5 (7), trimers (8 and 9), tetramers (10 and 11) and a pentamer (12) in this plant was demonstrated.
AB - A proanthocyanidin trimer (1), two tetramers (2 and 3) and a pentamer (4) have been isolated from the root bark of Cinnamomum sieboldii Meisner (Lauraceae). The structures of these compounds were established by acid-catalyzed thiolytic degradation, in conjunction with proton and carbon-13 nuclear magnetic resonance analyses. In addition, the presence of (-)-epicatechin (13), (+)-catechin (14) and known proanthocyanidins B-1 (5), B-2 (6) and B-5 (7), trimers (8 and 9), tetramers (10 and 11) and a pentamer (12) in this plant was demonstrated.
UR - http://www.scopus.com/inward/record.url?scp=0022389110&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022389110&partnerID=8YFLogxK
U2 - 10.1248/cpb.33.4338
DO - 10.1248/cpb.33.4338
M3 - Article
AN - SCOPUS:0022389110
SN - 0009-2363
VL - 33
SP - 4338
EP - 4345
JO - Chemical and Pharmaceutical Bulletin
JF - Chemical and Pharmaceutical Bulletin
IS - 10
ER -