1.
Chem Biodivers
; 10(9): 1589-96, 2013 Sep.
Artigo
em Inglês
| MEDLINE
| ID: mdl-24078592
RESUMO
A chemical investigation of the alkaloidal fraction of Dysoxylum acutangulum leaves led to the isolation and characterization of two new chromone alkaloid analogs named chrotacumines E and F (1 and 2, resp.). Structure elucidation of 1 and 2 was achieved by spectroscopic analyses, including 2D-NMR. Both of these alkaloids exhibited modest activities as tyrosinase inhibitors with 29.2 and 25.8% inhibition at 100â µg/ml, respectively.