The introductions of the bicyclic 4‐nitroimidazole and the oxazolidinone classes of antimicrobial agents represented the most significant advancements in the infectious disease area during the past two decades. Pretomanid, a bicyclic 4‐nitroimidazole, and linezolid, an oxazolidinone, are also part of a combination regimen approved recently by the US Food and Drug Administration for the treatment of pulmonary, extensively drug resistant (XDR), treatment‐intolerant or nonresponsive multidrug‐resistant (MDR) Mycobacterium tuberculosis (TB). To identify new antimicrobial agents with reduced propensity for the development of resistance, a series of dual‐acting nitroimidazole‐oxazolidinone conjugates were designed, synthesized and evaluated for their antimicrobial activity. Compounds in this conjugate series have shown synergistic activity against a panel of anaerobic bacteria, including those responsible for serious bacterial infections.

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Annex:

About TenNor Therapeutics

TenNor Therapeutics (6872.HK), incorporated in 2013, is a near-commercial stage biotechnology company dedicated to the discovery, development and commercialization of differentiated therapies to address unmet medical needs in disease areas associated with bacterial infections and bacterial metabolism. Empowered by its proprietary multi-targeting conjugate molecule technology, TenNor Therapeutics aims to deliver the best therapeutic solutions to overcome the limitations of conventional treatments and improve patient outcomes. As of June 30, 2026, TenNor Therapeutics had built a pipeline of eight innovative programs, including two Core Products, namely: rifasutenizol (TNP-2198), a multi-targeted conjugated new molecular entity (“NME”) candidate for the treatment of Helicobacter pylori infection when used in combination with amoxicillin and a proton pump inhibitor, as well as monotherapy for bacterial vaginosis and Clostridioides difficile (C. difficile) infection; and rifaquizinone (TNP-2092) injection, a triple-targeting NME candidate for the treatment of acute bacterial skin and skin structure infection and implant-associated bacterial infections (such as prosthetic joint infection, left ventricular assist device infection and catheter-related bloodstream infection).

For more information, please visit: www.tennortherapeutics.com