· Synthesis, X-ray diffraction study and pharmacological evaluation of 3-amino-4-methylthiophene-2-acylcarbohydrazones



Document title: · Synthesis, X-ray diffraction study and pharmacological evaluation of 3-amino-4-methylthiophene-2-acylcarbohydrazones
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000419768
ISSN: 0001-3765
Authors: 1
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2
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Institutions: 1Universidade Federal do Rio de Janeiro, Laboratorio de Avaliacao e Sintese de Substancias Bioativas, Rio de Janeiro. Brasil
2Universidade Federal do ABC, Centro de Ciencias Naturais e Humanas, Santo Andre, Sao Paulo. Brasil
3Eberhard-Karls-University Tübingen, Institute of Pharmacy, Tubingen, Baden-Wurttemburg. Alemania
4Universidade Federal de Alagoas, Instituto de Ciencias Biologicas e da Saude, Maceio, Alagoas. Brasil
Year:
Season: May
Volumen: 90
Number: 1
Pages: 1073-1088
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract N-acylhydrazone is an interesting privileged structure that has been used in the molecular design of a myriad of bioactive compounds. In order to identify new antinociceptive drug candidates, we described herein the design, synthesis, X-ray diffraction study and the pharmacological evaluation of a series of 3-amino-4-methylthiophene-2-acylcarbohydrazone derivatives (8a-t). Compounds were prepared in good overall yields through divergent synthesis from a common key intermediate and were characterized by classical spectroscopy methods. X-ray diffraction study was employed for unequivocal determination of the imine double bond stereochemistry. 8a-t were evaluated in vivo through oral administration using the classical writhing test in mice. N-acylhydrazone derivatives 8j and 8l displayed relative potency similar to dipyrone, highlighting them as promising analgesic lead-candidates for further investigation
Disciplines: Medicina,
Química
Keyword: Química farmacéutica,
Antinociceptivos,
Síntesis química,
N-acilhidrazona,
3-amino-4-metiltiofeno-2-acilcarbohidrazona,
Evaluación farmacológica,
Actividad analgésica
Keyword: Medicinal chemistry,
Antinociceptives,
Chemical synthesis,
N-acylhydrazone,
3-amino-4-methylthiophene-2-acylcarbohydrazones,
Pharmacological assessment,
Analgesic activity
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