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1.
J Nat Prod ; 74(6): 1370-8, 2011 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-21619045

RESUMO

Phytochemical investigation of the figs of Ficus mucuso led to the isolation of three new isoflavone dimer derivatives, mucusisoflavones A-C (1-3), together with 16 known compounds. Some of the isolates were tested in vitro for their inhibitory properties toward ß-glucuronidase and Plasmodium falciparum enoyl-ACP reductase (PfENR) enzymes. Compound 1 (IC50) 0.68 µM) showed inhibitory activity on ß-glucuronidase enzyme, while 3 (IC50) 7.69 µM) exhibited a weak inhibitory activity against P. falciparum enoyl-ACP reductase (PfENR).


Assuntos
Antimaláricos/isolamento & purificação , Antimaláricos/farmacologia , Enoil-(Proteína de Transporte de Acila) Redutase (NADH)/antagonistas & inibidores , Ficus/química , Glucuronidase/antagonistas & inibidores , Isoflavonas/isolamento & purificação , Isoflavonas/farmacologia , Plasmodium falciparum/efeitos dos fármacos , Plasmodium falciparum/enzimologia , Antimaláricos/química , Camarões , Concentração Inibidora 50 , Isoflavonas/química , Estrutura Molecular
2.
Chem Pharm Bull (Tokyo) ; 58(12): 1661-5, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21139276

RESUMO

Two new sphingolipids mucusamide (1) and mucusoside (2) have been isolated from methanol soluble part of the stem bark of Ficus mucuso WELW., together with fifteen known secondary metabolites including cellobiosylsterol (3), ß-sitosterol (4), stigmasterol (5), ß-sitosterol 3-O-ß-D-glucopyranoside (6), lupeol acetate (7), ursolic acid (8), procatechuic acid (9), 2-methyl-5,7-dihydroxychromone 8-C-ß-D-glucoside (10), apigenin (11), (-)-epicatechin (12), (+)-catechin (13), N-benzoyl-L-phenylalanilol (14), α-acetylamino-phenylpropyl α-benzoylamino-phenylpropionate (15), asperphenamate (16) and bejaminamide (17). Structures of compounds 1 and 2 were elucidated by spectroscopic analysis and chemical methods.


Assuntos
Ceramidas/química , Cerebrosídeos/química , Ficus/química , Esfingolipídeos/química , Ceramidas/isolamento & purificação , Cerebrosídeos/isolamento & purificação , Espectroscopia de Ressonância Magnética , Conformação Molecular , Casca de Planta/química , Caules de Planta/química , Esfingolipídeos/isolamento & purificação
3.
ACS Omega ; 5(10): 4807-4815, 2020 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-32201766

RESUMO

Newer imidazolium ionic liquid (IL) halides 4a-f appending variety of fluorinated phenylacetamide side chains were designed and synthesized through quaternization of 1-methyl and/or 1,2-dimethylimidazole with appropriate 2-chloro-N-(fluorinatedphenyl)acetamides. The resulting ILs were converted to their respective ionic liquid analogues carrying fluorinated counteranions (PF6 -, BF4 -, and/or CF3COO-) 5a-r. All newly synthesized ILs were fully characterized using several spectroscopic experiments such as 1H, 13C, 11B, 19F, 31P NMR, and mass analysis. The synthesized ionic liquids were investigated for their DNA binding and anticancer activities. The obtained DNA binding constants ranged from 1.444 × 105 to 3.518 × 105, indicating a reasonably good binding affinity. The percentage of anticancer activities ranged from 48 to 59 with H-1229 cell line, showing quite good anticancer potential. The modeling studies indicated the interactions of the reported molecules with DNA via hydrogen bonds. These were in agreement with those of DNA binding and anticancer results. Briefly, the designed ionic liquids may be used as good anticancer candidates for treating human cancer.

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