New flavanone and other constituents from A. DC. (fabaceae).

The chemical investigation of the methanol trunk bark extract of led to the isolation of a new flavanone, 5,7,4'-trihydroxy-3',5'-bis(3-methylbutadienyl)flavanone (trivially named senegalensisnone) (), together with seven known compounds, abyssinone-V-4'--methyl ether (), abyssinone V (), Calopocarpin (), genistein ) mixture of stigmasterol () and -sitosterol () and -sitosterol-3---D-glucopyranoside (). The structures of the isolates were elucidated by extensive spectroscopic and spectrometric analyses (1D and 2D NMR, ESI-MS) and by comparison with previously reported data. The absolute configuration of was deduced based on comparison of its experimental CD with that of similar compound.