Chemical Studies on Sophora tomentosa : the Isolation of a New Class of Isoflavonoid
-
- KINOSHITA Takeshi
- Faculty of Pharmaceutical Sciences, Teikyo University
-
- ICHINOSE Koji
- Faculty of Pharmaceutical Sciences, University of Tokyo
-
- TAKAHASHI Chiho
- Faculty of Pharmaceutical Sciences, University of Tokyo
-
- HO Feng-Chi
- Taiwan Forestry Research Institute
-
- WU Jin-Bin
- Faculty of Pharmaceutical Sciences, University of Tokyo
-
- SANKAWA Ushio
- Faculty of Pharmaceutical Sciences, University of Tokyo
Search this article
Abstract
Two new pterocarpans, sophoracarpans A and B, were isolated from Sophora tomentosa L. (Leguminosae) in addition to three known isoflavonoids, wighteone (erythrinin B), sophoraisoflavanone A and l-maackiain. The structures of sophoracarpans A and B were elucidated as 6β, 9-dimethoxy-3-hydroxypterocarpan and 3-hydroxy-6β-methoxy-8,9-methylenedioxypterocarpan, respectively, on the spectroscopic basis. The configurations at C-6,C-6a, and C-11a of both compounds were determined by a series of nuclear magnetic resonance irradiation experiments. The isoflavone wighteone, known as an antifungal phytoalexin in several genera of leguminous plants, was also found to occur in the genus Sophora.
Journal
-
- Chemical & pharmaceutical bulletin
-
Chemical & pharmaceutical bulletin 38 (10), 2756-2759, 1990-10-25
The Pharmaceutical Society of Japan
- Tweet
Keywords
Details
-
- CRID
- 1573387452274570112
-
- NII Article ID
- 110003628145
-
- NII Book ID
- AA00602100
-
- ISSN
- 00092363
-
- Text Lang
- en
-
- Data Source
-
- CiNii Articles