1.
Fitoterapia
; 72(4): 453-5, 2001 May.
Article
in English
| MEDLINE
| ID: mdl-11395278
ABSTRACT
A new flavone dimer, 3-hydroxy-4',5,7-trimethoxyflavone-(6-->8")-3"-hydroxy-3"',4"', 5",7"-tetramethoxyflavone, together with amenthoflavone, have been isolated from the leaves of Ouratea multiflora. Its structure was established by spectroscopic methods, including two-dimensional NMR spectroscopy.
Subject(s)
Flavonoids/isolation & purification , Plants, Medicinal , Rosales , Flavonoids/chemistry , Humans , Magnetic Resonance Spectroscopy , Plant Extracts/chemistry
2.
Planta Med
; 61(3): 217-20, 1995 Jun.
Article
in English
| MEDLINE
| ID: mdl-7617762
ABSTRACT
Two biflavonoids were isolated from the EtOH extract from leaves of Ouratea spectabilis. Their structures were established to be the novel 6,6"-bigenkwanin and 7,7"-dimethoxyagathisflavone on the basis of spectroscopic data. The inhibition of bovine lens aldose reductase exerted by these biflavones has been studied.
