# Finding new life in old chemicals for pharmaceuticals using light-driven chemistry > HelixNews · Web page: https://helixnews.one/story/862373 · All pages for agents: https://helixnews.one/llms.txt 1 outlet covering · First listed: Phys.org, Nov 11, 2026, 5:20 AM · Read it: Drug companies maintain large libraries of chemical compounds that can be screened for potential use in the development of new pharmaceuticals. One class of these compounds, sulfonamides, is used in antibiotics and in drugs to treat type 2 diabetes, hypertension and inflammation. Thousands of these sulfonamides exist in these libraries, but their use beyond their initial purpose is limited because they are difficult to chemically modify. ## Who's covering it In the order they published: - Nov 11, 2026, 5:20 AM: [Finding new life in old chemicals for pharmaceuticals using light-driven chemistry]() — Phys.org (Science news) Drug companies maintain large libraries of chemical compounds that can be screened for potential use in the development of new pharmaceuticals. One class of these compounds, sulfonamides, is used in antibiotics and in drugs to treat type 2 diabetes, hypertension and inflammation. Thousands of these sulfonamides exist in these libraries, but their use beyond their initial purpose is limited because they are difficult to chemically modify.