Abstract

A series of 2,4-dichloro-5-{[4-(phenylsulfonyl)piperazin-1-yl]carbonyl}benzenesulfonamide were designed and synthesized through amidation of Lasamide 1 with substituted piperazines. The newly obtained compounds demonstrated remarkable inhibition potency and selectivity for the human (h) expressed Carbonic Anhydrase (CA; EC 4.2.1.1) II isoform. Selected compounds 7 and 9 were considered in an in vivo model of glaucoma and showed relevant performances with the latter being able to last the effect up to 4 hours. The results herein reported are in sustainment of Lasamide derivatives as a new class of compounds potentially exploitable for the management of uncontrolled IOP.

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