5 バナナ果実のファイトアレキシン・(-)-1,2-trans-2,3-cis-2,3-dihydro-1,2,3-trihydroxy-4-(4'-methoxyphenyl)phenaleneの絶対構造

概要

論文の詳細を見る
Twenty-one phenylphenalenones and the derivatives were isolated and identified as phytoalexins from banana fruit, but absolute configurations of optically active phenylphenalenones have not been elucidated. Optical rotation of methyl ether of (+)-2,3-cis-2,3-dihydro-2,3-dihydroxy-4-(4'-hydoxyphenyl)-phenalen-1-one (1) revealed that its absolute configuration was identical with that of (+)-2,3-cis-2,3-dihydro-2,3-dihydroxy-4-(4'methoxyphenyl)phenalen-1-one (2). (-)-1,2-trans-2,3-cis-2,3-Dihydro-1,2,3-trihydroxy-4-(4'-hydoxyphenyl)phenalene (3) was also shown to have the absolute configuration identical to (-)-1,2-trans-2,3-cis-2,3-dihydro-1,2,3-trihydroxy-4-(4'-methoxyphenyl)phenalene (4). Elucidation of the absolute configuration of 4 is now in progress.
植物化学調節学会の論文
2000-11-02