Synthesis and Characterization of Levofloxacin-Conjugated Amphiphilic Peptides | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 68, Issue 3, March 2025, Page 161-167 PDF (903.08 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2024.297620.9868 | ||||
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| Authors | ||||
Rakesh K. Tiwari1, 2; Keykavous Parang1; Shaban A. Darwish  3
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| 1Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92866, USA | ||||
| 2Department of Basic Medical Sciences, College of Osteopathic Medicine of the Pacific-Northwest, Western University of Health Sciences, Lebanon, OR 97355, USA | ||||
| 3Organometallic and Organometalloid Chemistry Department, National Research Centre, El Bohouth St., Dokki, Giza 12622, Egypt | ||||
| Abstract | ||||
| The global challenge of antibacterial drug resistance has long impeded progress in the healthcare sector. To address this issue, an integrated approach involving antibacterial drugs and amphiphilic peptides has emerged as a promising strategy. This research aims to synthesize conjugates of levofloxacin (LEV) with rationally designed amphiphilic peptides (RFWRRIR, AKKWRKRW, and RWRIRWRKRA). Linear peptides, composed of a sequence of cationic and hydrophobic residues, were synthesized via solid-phase synthesis. Subsequently, LEV-containing amphiphilic peptides (LEV-RFWRRIR, LEV-AKKWRKRW, LEV-RWRIRWRKRA, and LEV-RWRIRWRK(LEV)RA) were synthesized under either solid-phase or solution-phase conditions, tailored to the specific levofloxacin-peptide conjugates needed. Four meticulously designed conjugates underwent purification through reverse-phase high-performance liquid chromatography (RP-HPLC) and characterization via matrix-assisted laser desorption ionization time-of-flight mass spectroscopy (MALDI-TOF MS). | ||||
| Keywords | ||||
| Amphiphilic peptides; Levofloxacin; Levofloxacin-peptide conjugates; Solid-phase synthesis | ||||
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