Title of article :
Two novel tetracycles, cassibiphenols A and B from the flowers of Cassia siamea
Author/Authors :
Deguchi، نويسنده , , Jun and Sasaki، نويسنده , , Tadahiro and Hirasawa، نويسنده , , Yusuke and Kaneda، نويسنده , , Toshio and Kusumawati، نويسنده , , Idha and Shirota، نويسنده , , Osamu and Morita، نويسنده , , Hiroshi، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2014
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.
Keywords :
Cassibiphenols A and B , Biphenyl , Structure elucidation , Cassia siamea , Partial synthesis
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
