Laccase-Catalyzed Derivatization of Antibiotics with Sulfonamide or Sulfone Structures

Abstract

Trametes spec. laccase (EC 1.10.3.2.) mediates the oxidative coupling of antibiotics with sulfonamide or sulfone structures with 2,5-dihydroxybenzene derivatives to form new heterodimers and heterotrimers. These heteromolecular hybrid products are formed by nuclear amination of the p-hydroquinones with the primary amino group of the sulfonamide or sulfone antibiotics, and they inhibited in vitro the growth of Staphylococcus species, including multidrug-resistant strains.

Keywords

• laccase
• biotransformation
• sulfonamide antibiotics
• antibacterial activity
• multidrug resistance (MDR)
• β-lactam antibiotics