Details

Autor(en) / Beteiligte

• Jordão, Alessandro K.
• Sathler, Plínio C.
• Ferreira, Vitor F.
• Campos, Vinícius R.
• de Souza, Maria C.B.V.
• Castro, Helena C.
• Lannes, Andressa
• Lourenco, André
• Rodrigues, Carlos R.
• Bello, Murilo L.
• Lourenco, Maria C.S.
• Carvalho, Guilherme S.L.
• Almeida, Maria C.B.
• Cunha, Anna C.

Titel

Synthesis, antitubercular activity, and SAR study of N-substituted-phenylamino-5-methyl-1H-1,2,3-triazole-4-carbohydrazides

Ist Teil von

• Bioorganic & medicinal chemistry, 2011-09, Vol.19 (18), p.5605-5611

Ort / Verlag

Amsterdam: Elsevier Ltd

Erscheinungsjahr

2011

Quelle

MEDLINE

Beschreibungen/Notizen

• This paper describes the synthesis, experimental evaluation for antitubercular activity and theoretical analysis of the N-substituted-phenylamino-5-methyl-1H-1,2,3-triazole-4-carbohydrazides 8. Tuberculosis treatment remains a challenge that requires new antitubercular agents due to the emergence of multidrug-resistant Mycobacterium strains. This paper describes the synthesis, the antitubercular activity and the theoretical analysis of N-substituted-phenylamino-5-methyl-1H-1,2,3-triazole-4-carbohydrazides (8a–b, 8e–f, 8i–j and 8n–o) and new analogues (8c–d, 8g–h, 8l–m and 8p–q). These derivatives were synthesized in good yields and some of them showed a promising antitubercular profile. Interestingly the N-acylhydrazone (NAH) 8n was the most potent against the Mycobacterium tuberculosis H37Rv strain (MIC=2.5μg/mL) similar to or better than the current drugs on the market. The theoretical structure–activity relationship study suggested that the presence of the furyl ring and the electronegative group (NO2) as well as low lipophilicity and small volume group at R position are important structural features for the antitubercular profile of these molecules. NMR spectra, IR spectra and elemental analyses of these substances are reported.