| Literature DB >> 15184015 |
Yoshiki Kono1, Aya Kojima, Rieko Nagai, Manabu Watanabe, Takahiro Kawashima, Tsugu Onizawa, Tohru Teraoka, Minoru Watanab, Hiroyuki Koshino, Jun Uzawa, Yoshikatsu Suzuki, Akira Sakurai.
Abstract
Six structurally oryzalide-related compounds, oryzadione (1), 2, 3, 4, 5 and 6, were isolated from a neutral fraction of the extract of healthy leaves using a bacterial leaf blight-resistant cultivar of a rice plant, "Norin-27", as a group of antimicrobial substances. Their structures were determined by spectroscopic studies to be kaurane analogues and kaurane analogues conjugated with fatty acids, i.e., 1: ent-15,16-epoxy-kauran-2,3-dione (enol form: ent-15,16-epoxy-2-hydroxy-kauran-1-en-3-one), 2: ent-15,16-epoxy-3beta-hydroxy-kauran-2-one, 3: ent-15,16-epoxy-3-oxa-kauran-2-one, 4: ent-15,16-epoxy-3beta-myristoyloxy-kauran-2-one, 5: ent-15,16-epoxy-3alpha-palmitoyloxy-kauran-2-one, and 6: ent-15,16-epoxy-2beta-palmitoyloxy-kauran-2-one.Entities:
Mesh：
Substances：
Year: 2004 PMID： 15184015 DOI： 10.1016/j.phytochem.2004.03.016
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072