The evaluation of quinonoid compounds against Trypanosoma cruzi: synthesis of imidazolic anthraquinones, nor-beta-lapachone derivatives and beta-lapachone-based 1,2,3-triazoles.

Abstract:

:In continuing our screening program of naphthoquinone activity against Trypanosoma cruzi, the aetiological agent of Chagas' disease, new beta-lapachone-based 1,2,3-triazoles, 3-arylamino-nor-beta-lapachones, 3-alkoxy-nor-beta-lapachones and imidazole anthraquinones were synthesised and evaluated against bloodstream trypomastigote forms of the parasite. Compounds 2,2-dimethyl-3-(2,4-dibromophenylamino)-2,3-dihydro-naphtho[1,2-b]furan-4,5-dione, IC(50)/24h 24.9+/-7.4 and 4-azido-3-bromo-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene-5,6-dione with 23.4+/-3.8 microM showed a trypanosomicidal activity higher than benznidazole. These results demonstrate the potential of naphthoquinone derivatives as novel structures for the development of alternative drugs for Chagas' disease.

journal_name

Bioorg Med Chem

authors

da Silva EN Jr,Guimarães TT,Menna-Barreto RF,Pinto Mdo C,de Simone CA,Pessoa C,Cavalcanti BC,Sabino JR,Andrade CK,Goulart MO,de Castro SL,Pinto AV

doi

10.1016/j.bmc.2010.03.029

subject

Has Abstract

pub_date

2010-05-01 00:00:00

pages

3224-30

issue

9

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(10)00233-6

journal_volume

18

pub_type

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