| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5263657 | Tetrahedron Letters | 2014 | 4 Pages |
Abstract
Chemical investigation of the flowers of Cassia siamea (Leguminosae), resulted in the isolation of two novel tetracycles connecting 5-(2-hydroxypropyl)benzene-1,3-diol, cassibiphenols A (1) and B (2). The structures were elucidated by analysis of the 1D, 2D NMR, and HRMS spectra. Synthesis of a tetracyclic core of 1 and 2 led to determine the absolute configuration of 1 and C-12 of 2.
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Authors
Jun Deguchi, Tadahiro Sasaki, Yusuke Hirasawa, Toshio Kaneda, Idha Kusumawati, Osamu Shirota, Hiroshi Morita,