2'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC, 4'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC, AND 6'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC ACIDS FROM NEPETA-GRANDIFLORA

Authors
NAGY T KOCSIS A MORVAI M SZABO LF PODANYI B GERGELY A JERKOVICH G
Citation
T. Nagy et al., 2'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC, 4'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC, AND 6'-O-SUBSTITUTED-1,5,9-EPIDEOXYLOGANIC ACIDS FROM NEPETA-GRANDIFLORA, Phytochemistry, 47(6), 1998, pp. 1067-1072
Citations number
6
Categorie Soggetti
Biology,"Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
47
Issue
6
Year of publication
1998
Pages
1067 - 1072
Database
ISI
SICI code
0031-9422(1998)47:6<1067:24>2.0.ZU;2-3
Abstract
In addition to the known 1,5,9-epideoxyloganic acid and 1,5,9-epideoxy loganin, Nepeta grandiflora a has provided four new iridoid glucosides : 6'-O-acetoacetyl-, 2'-O-methyl-, 4'-O-methyl-, and 6'-O-methyl-1,5,9 -epideoxyloganic acid. Their structures were proved by H-1 and C-13-NM R studies. The conformation of the molecules was studied by molecular modelling and H-1 NMR coupling constant analysis. The absolute configu rations were supported by CD spectroscopy. (C) 1998 Elsevier Science L td. All rights reserved.