Abstract
A new hydrolyzable tannin, named isorugosin B (1), was isolated from Liquidambar formosana, and the structure in which the orientation of valoneoyl group at 0-4 ~ 0-6 of the glucose core is the reverse of that in rugosin B (2) and in rugosin A (3), was determined. The orientation of valoneoyl group in rugosin A (3) was established by the long range 1H13C correlation nmr spectroscopy. The structures of rugosins D (6), E (7) and G (8), coriariins C (9), D (10), E (11) and F (12), cornusiin A (13), camptothins A (b15) and B (16), were fully established on the basis of chemical correlations with 1 or 3.
| Original language | English |
|---|---|
| Pages (from-to) | 2081-2085 |
| Number of pages | 5 |
| Journal | Heterocycles |
| Volume | 27 |
| Issue number | 9 |
| Publication status | Published - Sep 1 1988 |
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ASJC Scopus subject areas
- Organic Chemistry
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Structure of isorugosin b, and the orientation of valoneoyl group in the related monomeric, dimeric and trimeric hydrolyzable tannins. / Hatano, Tsutomu; Kira, Reiko; Yasuhara, Taeko; Okuda, Takuo.
In: Heterocycles, Vol. 27, No. 9, 01.09.1988, p. 2081-2085.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Structure of isorugosin b, and the orientation of valoneoyl group in the related monomeric, dimeric and trimeric hydrolyzable tannins
AU - Hatano, Tsutomu
AU - Kira, Reiko
AU - Yasuhara, Taeko
AU - Okuda, Takuo
PY - 1988/9/1
Y1 - 1988/9/1
N2 - A new hydrolyzable tannin, named isorugosin B (1), was isolated from Liquidambar formosana, and the structure in which the orientation of valoneoyl group at 0-4 ~ 0-6 of the glucose core is the reverse of that in rugosin B (2) and in rugosin A (3), was determined. The orientation of valoneoyl group in rugosin A (3) was established by the long range 1H13C correlation nmr spectroscopy. The structures of rugosins D (6), E (7) and G (8), coriariins C (9), D (10), E (11) and F (12), cornusiin A (13), camptothins A (b15) and B (16), were fully established on the basis of chemical correlations with 1 or 3.
AB - A new hydrolyzable tannin, named isorugosin B (1), was isolated from Liquidambar formosana, and the structure in which the orientation of valoneoyl group at 0-4 ~ 0-6 of the glucose core is the reverse of that in rugosin B (2) and in rugosin A (3), was determined. The orientation of valoneoyl group in rugosin A (3) was established by the long range 1H13C correlation nmr spectroscopy. The structures of rugosins D (6), E (7) and G (8), coriariins C (9), D (10), E (11) and F (12), cornusiin A (13), camptothins A (b15) and B (16), were fully established on the basis of chemical correlations with 1 or 3.
UR - http://www.scopus.com/inward/record.url?scp=37648999124&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37648999124&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:37648999124
VL - 27
SP - 2081
EP - 2085
JO - Heterocycles
JF - Heterocycles
SN - 0385-5414
IS - 9
ER -