Leitgeb AJ, Feliciano JA, Sanchez HA, Allen RA, Morrison KR, Sommers KJ, Carden RG, Wuest WM, Minbiole KPC. Further Investigations into Rigidity-Activity Relationships in BisQAC Amphiphilic Antiseptics.
ChemMedChem 2020;
15:667-670. [PMID:
32022457 PMCID:
PMC8322965 DOI:
10.1002/cmdc.201900662]
[Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/09/2020] [Indexed: 12/11/2022]
Abstract
Thirty-six biscationic quaternary ammonium compounds were efficiently synthesized in one step to examine the effect of molecular geometry of two-carbon linkers on antimicrobial activity. The synthesized compounds showed strong antimicrobial activity against a panel of both Gram-positive and Gram-negative bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). While the linker geometry showed only a modest correlation with antimicrobial activity, several of the synthesized bisQACs are promising potential antiseptics due to good antimicrobial activity (MIC≤2 μM) and their higher therapeutic indices compared to previously reported QACs.
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