Synthesis of Aspirin-Thiourea Derivatives and Their Antibacterial Activities

A series of aspirin-thiourea derivatives 18-21 were synthesised by reacting acetylsalicyloyl chloride with KSCN to produce acetoxybenzoyl isothiocyanate, following with 2,3-d imethylaniline, 2,4-dimethylaniline, 2,5-dimethylaniline and 2,6-dimethylaniline respectively. The synthesised compounds were...

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Bibliographic Details
Main Author: Chai, Tchan Wei
Format: Final Year Project Report
Language:English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2014
Subjects:
Online Access:http://ir.unimas.my/id/eprint/34435/2/Chai%20Tchan%20Wei%20ft.pdf
http://ir.unimas.my/id/eprint/34435/
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Summary:A series of aspirin-thiourea derivatives 18-21 were synthesised by reacting acetylsalicyloyl chloride with KSCN to produce acetoxybenzoyl isothiocyanate, following with 2,3-d imethylaniline, 2,4-dimethylaniline, 2,5-dimethylaniline and 2,6-dimethylaniline respectively. The synthesised compounds were characterised using CHN analyzer, FTIR, 1H NMR and 13C NMR spectroscopy. These synthesised compounds were screened for their antibacterial activities against Gram-negative bacteria (Escherichia Coli) using Kirby Bauer method. Among the synthesised compounds, compound 21 was inactive against E. Coli while compound 20 showed good activity against E. Coli.