| Popis: |
A series of 1,3,5-trisubstituted pyrazole derivatives were prepared from one asymmetrical polyfluorinated 1,3-diketone. The reactivity of substituted hydrazines towards the diketone compound is studied leading to the formation of regioisomers. The polyfluorinated pyrazoles were utilized for the alkylation with N-aryl acetamides to yield N-alkyl products. Then they were hooked with amino acid esters such as L-phenylalanine, L-proline, L-tyrosine, and L-norvaline by multistep process. The antimicrobial activities of the synthesized pyrazoles were evaluated. All synthesized compounds were characterized by spectroscopic and analytical methods. |
