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  • Title: Synthesis and Antimicrobial Evaluation of Novel Chiral 2-Amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridine Derivatives.
    Author: Rossetti A, Bono N, Candiani G, Meneghetti F, Roda G, Sacchetti A.
    Journal: Chem Biodivers; 2019 Jun; 16(6):e1900097. PubMed ID: 30942951.
    Abstract:
    New N-substituted-2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridine derivatives were synthesized employing a convenient one-pot three-component method and their structures were characterized by 1 H-NMR and single crystal X-ray diffraction analysis. All the synthesized compounds were in vitro screened for antimicrobial activity against Gram-positive (Sarcina lutea) and Gram-negative bacteria (Escherichia coli). In this work, we introduced a chiral residue on the tetrahydropyridine nitrogen, the hitherto the less investigated position on this pharmacophore in order to explore the effect. The antibacterial results showed that the synthesized compounds were active only against Gram-positive bacteria and the (R)-enantiomers displayed a greater antimicrobial potency than their (S)-counterparts. The structure-activity relationship here investigated may provide some interesting clues for future development of tetrahydrothienopyridine derivatives with higher antimicrobial activity.
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