A variety of antagonists of vitamins, hormones and cell metabolites had been synthesized after Donald Woods of Oxford University discovered in 1940 that sulfonamides exerted their antibacterial action by antagonizing the role of 4-aminobenzoic acid, a growth factor and essential for the survival parasites, be they bacteria, protozoa or viruses. Such antagonists were described as antimetabolites.
During World War II sulfonamides were used as wound dressings by the armed involved in the conflict. It has been estimated that more than 5000 sulfonamide does were prepared in the 1930s and 1940s.
In 1942, Marcel Janbon and co-workers discovered that sulfonylureas (sulfonamide derivatives) induced hypoglycemia in animals. These discoveries lead to antidiabetic drugs. These drugs use to manage Type 2 diabetes mellitus by increasing insulin release from the beta cells in the pancreas.
History of sulfonamide