Cerebrovasodilatation through selective inhibition of the enzyme carbonic anhydrase. 3. 5-(Arylthio)-, 5-(arylsulfinyl)-, and 5-(arylsulfonyl)thiophene-2-sulfonamides
摘要:
A series of 5-(arylthio)-, 5-(arylsulfinyl)-, and 5-(arylsulfonyl)thiophene-2-sulfonamides is described and anticonvulsant activities are listed for the compounds. In most cases, the sulfones had the highest activity and the sulfides the least. Sulfones with 3- or 4-halo substituents generally had the highest activity, and one analogue, 5-[(4-fluorophenyl)sulfonyl]thiophene-2-sulfonamide (51, UK-17022), had an anticonvulsant ED50 fo 2 mg/kg when administered orally to mice. Compound 51 selectively increased cerebral blood flow in animals without an unacceptable level of diuresis.
Transition-Metal-Free C–N Cross-Coupling Enabled by a Multifunctional Reagent
作者:Patrick S. Fier、Suhong Kim
DOI:10.1021/jacs.4c00871
日期:2024.3.13
cross-coupling reaction of phenols and primary amines using a simple and readily available multifunctional reagent. The reactions work by induced proximity and electronic activation of both the nucleophile and the electrophile for net dehydrative C–N coupling reactions. Notably, the reactions do not involve the use of a transition metal for C–N bond formation, preactivation of the phenol electrophile, or exclusion
Derivatives of thiophenesulfonamide, their preparation and pharmaceutical composition for the topical treatment of elevated intraocular pressure
申请人:Merck & Co., Inc.
公开号:EP0130109A2
公开(公告)日:1985-01-02
Novel derivatives of lphenyl-sulfonyl (or sulfinyl or carbonyl)] thiophenesulfonamides are useful for the topical treatment of elevated intraocular pressure in ophthalmic compositions including drops and inserts.