Shamsuzzaman Shamsuzzaman, Mohd Shaheen Khan, Mehboob Alam
The reaction of cholest-5-en-7-one (1), its 3β-acetoxy (2) and 3β-chloro (3) analogues with thiosemicarbazide in sodium ethoxide affords 2'-thiocarbamoyl-cholest [5,7-cd] pyrazoline (4), 2'-thiocarbamoyl-3β-acetoxycholest [5,7-cd] pyrazoline (5), and 2'-thiocarbamoyl-3β-chloro cholest [5,7-cd] pyrazoline (6), respectively. The structures of the newly synthesized compounds have been established on the basis of physical, analytical and spectral data. Their antibacterial activities were tested in vitro by disk diffusion assay against Gram-positive and Gram-negative bacterial strains of bacteria.
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