Cerebrovasodilatation through selective inhibition of the enzyme carbonic anhydrase. 1. Substituted benzenedisulfonamides.

A series of substituted benzenedisulfonamide carbonic anhydrase inhibitors is described and their anticonvulsant activities are listed. One compound, 4-(4-methoxypiperidinosulfonyl)-2-chlorobenzenesulfonamide (19, UK-12130), was found to have anticonvulsant activity in animals at a dose level that gave only a minimal diuretic effect. 19 selectively increased cerebral blood flow in animals and man without producing an unacceptable level of metabolic acidosis.