RESUMO
Microwave-assisted synthesis of 23 α-cyano bis(indolyl)chalcones (6a-w) and their in vitro anticancer activity against three human cancer cell lines have been discussed. Among the synthesized chalcones, compound 6n was found to be the most potent and selective against A549 lung cancer cell line (IC50 = 0.8 µM). In a preliminary mechanism of action studies some α-cyano bis(indolyl)chalcones were found to enhance tubulin polymerization suggesting these compounds could act as microtubule stabilizing agents.
Assuntos
Antineoplásicos/síntese química , Antineoplásicos/farmacologia , Chalconas/síntese química , Chalconas/farmacologia , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Sobrevivência Celular/fisiologia , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais/métodos , HumanosRESUMO
A recipe for potency: A novel series of bis(indolyl)-1,3,4-oxadiazoles was prepared from the corresponding hydrazide-hydrazones via iodobenzene diacetate-promoted oxidative cyclization. Evaluation against a panel of human cancer cell lines revealed that some derivatives possess potent cytotoxicity with tunable selectivity for different cancer types.
Assuntos
Antineoplásicos/síntese química , Antineoplásicos/farmacologia , Oxidiazóis/síntese química , Oxidiazóis/farmacologia , Antineoplásicos/química , Linhagem Celular Tumoral , Citotoxinas/síntese química , Citotoxinas/química , Citotoxinas/farmacologia , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Indóis/síntese química , Indóis/química , Indóis/farmacologia , Neoplasias/tratamento farmacológico , Oxidiazóis/químicaRESUMO
A series of bis(indolyl) hydrazide-hydrazones 5a-n were synthesized and evaluated for their cytotoxicity against selected human cancer cell lines. The reaction of indole-3-carboxaldehyde 2 with indole-3-carbohydrazide 4 in presence of catalytic amount of acetic acid afforded 5a-n in good yields. Among the synthesized bis(indolyl)hydrazide-hydrazones, the compound 5b with N-(p-chlorobenzyl) and bromo substituents was found to be the most potent against multiple cancer cell lines (IC(50)=1.0 µM, MDA-MB-231). The compound 5k exhibited selective cytotoxicity against breast cancer cell line MCF7 (IC(50)=3.1 µM).
Assuntos
Antineoplásicos/farmacologia , Química Farmacêutica/métodos , Hidrazinas/química , Hidrazonas/química , Indóis/química , Neoplasias/tratamento farmacológico , Ácido Acético/química , Animais , Catálise , Linhagem Celular Tumoral , Desenho de Fármacos , Ensaios de Seleção de Medicamentos Antitumorais/métodos , Humanos , Hidrazinas/farmacologia , Hidrazonas/farmacologia , Concentração Inibidora 50 , Modelos Químicos , PoríferosRESUMO
A series of 5-(3-indolyl)-2-substituted-1,3,4-thiadiazoles 5a-m were synthesized and their cytotoxicity analyzed against six human cancer cell lines. The reaction of indole-3-carboxylic acid 3 with aryl or heteroaryl hydrazides afforded the N,N'-diacylhydrazines 4, which upon treatment with Lawesson's reagent resulted in the formation of indolyl-1,3,4-thiadiazoles 5a-m in good yields. Indolyl-1,3,4-thiadiazole 5m with 4-benzyloxy-3-methoxyphenyl and 5-bromo indolyl substituents is the most active in suppressing the growth of cancer cells (IC(50) 1.5 muM, PaCa2). The compounds 5b, 5e and 5h bearing C-2 substituent as benzyl, 3,4-dimethoxyphenyl and 4-benzyloxy-3-methoxyphenyl, respectively, have shown significant cytotoxicity against multiple cancer cell lines. Introduction of 4-dimethylamino (5d and 5k) and 3,4,5-trimethoxy (5l) groups in the C-2 phenyl ring induced selectivity against MCF7 and MDA-MB-231 cancer cell lines (compounds 5d, 5k and 5l).
