Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Nobuhiro Hirai"'
Publikováno v:
Tetrahedron. 57:7649-7656
Six new phenylphenalenone derivatives were isolated from unripe banana, Musa acuminata , fruit that had been wounded followed by inoculation with Colletotrichum musae . Absolute configurations of optically active phenylphenalenone derivatives were el
Autor:
Yasushi Todoroki, Nobuhiro Hirai
Publikováno v:
Tetrahedron. 56:8095-8100
The conformational behavior of the cyclohexenone ring in abscisic acid (1) and its analogs (2–5) with a fused cyclopropyl ring was investigated by a low-temperature NMR analysis and computer-aided calculations of the model compounds. The 1H signals
Publikováno v:
Tetrahedron. 56:1649-1653
8′-Hydroxyabscisic acid (8′-HOABA), the first metabolite of abscisic acid (ABA) in plants, is spontaneously isomerized to low bioactive phaseic acid (PA). We investigated thermodynamic and kinetic properties of the isomerization process in aqueou
Publikováno v:
Tetrahedron. 52:8081-8098
For investigating ring conformational requirement for the biological activity of abscisic acid, the cyclopropane analogues 6, 7, 9 , and 10 were synthesized and their biological activities in four bioassays were tested. The activity of the achiral cy
Publikováno v:
Tetrahedron. 51:6911-6926
(S)-(+)-3′-Fluoroabscisic acid (5a) was synthesized as an analogue of abscisic acid that can resist the metabolic cyclization of 8′-hydroxyabscisic acid to phaseic acid due to increased electron density at C-2′. The inhibitory activity of 5a wa