Three xanthones and six coumarins were isolated from the hexane extract of the stems of Kielmeyera lathrophyton, among them two new prenylated xanthones 1,5-dihydroxy -6'-methyl -6' -(4-methyl -3-pentenyl) -pyrano(2',3':3,2) -xanthone, 1,7 -dihydroxy -6' -methyl -6' -(4 -methyl -3 -pentenyl) -pyrano(2',3':3,2) -xanthone, and two new 4 -s -butylcoumarins 7 -hydroxy -8 -(3-methyl -1 -oxobutyl) -4 -s -butyl -6',6' -dimethylpyrano (2',3':5,6) -coumarin, 7 -hydroxy -8 -(2-methyl -1 -oxobutyl) -4 -s -butyl -6',6' -dimethylpyrano (2',3':5,6) -coumarin, along with the compounds, delta -tocotrienol, friedelin, 24alpha -ethylcholest -5 -en -3 -one, and , 24alpha -ethylcholest -5,22 -dien -3 -ol. These compounds were identified by comparison with lite...
The bioassay-guided fractionation of stems from Kielmeyera variabilis , traditionally used in Bra...
Two new diphenylketones (1 and 2), a new xanthone (3), and a known xanthone analogue (4) were isolat...
This review gives information on the chemical study of 71 pentaoxygenated, 11 hexaoxygenated and 9 d...
p. 117-122Do extrato hexânico de Kielmeyera lathrophyton foram isoladas duas novas xantonas, 1,5 -di...
Kielmeyera rubriflora Camb. contains 2_hydroxyxanthone, 2,4-dimethoxy-3-hydroxyxanthone, 2,3-di...
In continuation of our studies on extracts of the Guttiferae family we have examined the stems and ...
Friedelin, the 4-phenylcoumarins mammeisin, 4-phenyl-5-hydroxy-6-(3-methyl-1-oxobutyl)-2'-(1-hydroxy...
Bioactivity-guided fractionation of the EtOH extract of the branches of Kielmeyera variabilis led to...
Friedelin, the 4-phenylcoumarins mammeisin, 4-phenyl-5-hydroxy-6-(3-methyl-1-oxobutyl)-2′-(1-hydroxy...
Do extrato hexânico de Kielmeyera lathrophyton foram isoladas duas novas xantonas, 1,5-diidroxi-6’-m...
Texto completo: acesso restrito. p.703–706Two new prenylated 4-n-propylcoumarins, 7-hydroxy-8-(4-cin...
The in vitro antibacterial activities of the biphenyl aucuparin and xanthones, obtained from the dic...
Many phenolic compounds such as xanthones, quinones and coumarins have been isolated from Kielmeyera...
The bioassay-guided fractionation of stems from Kielmeyera variabilis, traditionally used in Brazili...
As part of our ongoing research on antioxidant agents from Brazilian flora, we screened the free rad...
The bioassay-guided fractionation of stems from Kielmeyera variabilis , traditionally used in Bra...
Two new diphenylketones (1 and 2), a new xanthone (3), and a known xanthone analogue (4) were isolat...
This review gives information on the chemical study of 71 pentaoxygenated, 11 hexaoxygenated and 9 d...
p. 117-122Do extrato hexânico de Kielmeyera lathrophyton foram isoladas duas novas xantonas, 1,5 -di...
Kielmeyera rubriflora Camb. contains 2_hydroxyxanthone, 2,4-dimethoxy-3-hydroxyxanthone, 2,3-di...
In continuation of our studies on extracts of the Guttiferae family we have examined the stems and ...
Friedelin, the 4-phenylcoumarins mammeisin, 4-phenyl-5-hydroxy-6-(3-methyl-1-oxobutyl)-2'-(1-hydroxy...
Bioactivity-guided fractionation of the EtOH extract of the branches of Kielmeyera variabilis led to...
Friedelin, the 4-phenylcoumarins mammeisin, 4-phenyl-5-hydroxy-6-(3-methyl-1-oxobutyl)-2′-(1-hydroxy...
Do extrato hexânico de Kielmeyera lathrophyton foram isoladas duas novas xantonas, 1,5-diidroxi-6’-m...
Texto completo: acesso restrito. p.703–706Two new prenylated 4-n-propylcoumarins, 7-hydroxy-8-(4-cin...
The in vitro antibacterial activities of the biphenyl aucuparin and xanthones, obtained from the dic...
Many phenolic compounds such as xanthones, quinones and coumarins have been isolated from Kielmeyera...
The bioassay-guided fractionation of stems from Kielmeyera variabilis, traditionally used in Brazili...
As part of our ongoing research on antioxidant agents from Brazilian flora, we screened the free rad...
The bioassay-guided fractionation of stems from Kielmeyera variabilis , traditionally used in Bra...
Two new diphenylketones (1 and 2), a new xanthone (3), and a known xanthone analogue (4) were isolat...
This review gives information on the chemical study of 71 pentaoxygenated, 11 hexaoxygenated and 9 d...