Hit optimization of the class of quinazoline containing histamine H(4) receptor (H(4)R) ligands resulted in a sulfonamide substituted analogue with high affinity for the H(4)R. This moiety leads to improved physicochemical properties and is believed to probe a distinct H(4)R binding pocket that was previously identified using pharmacophore modeling. By introducing a variety of sulfonamide subst...

Perfluorooctanoate (PFOA) and perfluorooctanesulfonate (PFOS) are thought to induce peroxisome proliferation and interfere with mitochondrial metabolic pathways. Direct measurements revealed that PFOA and the unsubstituted sulfonamide of perfluorooctane (FOSA) uncouple mitochondrial respiration by increasing proton conductance. The purpose of this investigation was to characterize structural de...

In the title compound, C(11)H(16)N(2)O(3)S, the S atom has a distorted tetra-hedral geometry [maximum deviation: O-S-O = 119.48 (15)°]. The dihedral angles between the benzene ring and its propyl-sulfonamide and methyl-amide substituents are 71.8 (2) and 5.8 (1)°, respectively. In the crystal, mol-ecules are linked by N(m)-H⋯O(s) (m = methyl-amide and s = sulfonamide) hydrogen bonds, forming C(...

In the title mol-ecule, C(28)H(33)FN(2)O(5)S, the mean plane about the tertiary amine group (sum of the angles subtended at the sp(2)-hybridized N atom = 359.7°) forms a dihedral angle of 16.66 (6)° with the phenyl ring adjacent to the carbamate group. The sulfonamide benzene ring and the hy-droxy group lie to either side of the C(2)NS plane, whereas the benzyl-phenyl (connected to the N atom) ...

Molecular-level chromophore-quencher assemblies have been prepared in precast chlorosulfonated polystyrene ( [-CHzCH(p-C6H4S02CI)]~-; PS-SOzCl) films by (1) exposing the intact film to solutions containing the chromophore [(bpy)2Ru(5-NHghen)] [PF612 (bpy is 2,2‘-bipyridine; 5-NHzphen is 5-amino1 ,IO-phenanthroline) which becomes chemically bound through sulfonamide bond formation, (2) partially...

The title compound, C18H21NO4S, is a new sulfonamide derivative of tranexamic acid. In the crystal, mol-ecules form inversion dimers via O-H⋯O hydrogen bonds involving the carb-oxy-lic acid groups. Hydrogen bonding between the sulfonamide N-H group and the carb-oxy-lic acid O atom assembles the dimers into thick layers parallel to (100). The naphthalene groups of adjacent layers are arranged in...

Polystyrene-silica core-shell nanocomposite particles are successfully prepared via one-step Pickering emulsion polymerization. Possible mechanisms of Pickering emulsion polymerization are addressed in the synthesis of polystyrene-silica nanocomposite particles using 2,2-azobis(2-methyl-N-(2-hydroxyethyl)propionamide (VA-086) and potassium persulfate (KPS) as the initiator. Motivated by potenti...

In the title compound, C(15)H(15)N(5)O(4)S, the dihedral angle between the pyrimidine and benzene rings is 84.56 (2)°. Intra-molecular hydrazine-carbonyl N-H⋯O and inter-molecular sulfonamide-pyridimine N-H⋯N hydrogen bonds stabilize the mol-ecular and crystal structures, respectively.

In the title sulfonamide derivative, C11H10ClN3O2S, the dihedral angle between the pyridine rings is 46.85 (12)°. The N atom of the chloro-pyridine ring is anti to the N-H bond. In the crystal, mol-ecules are linked through N-H⋯N hydrogen bonds into zigzag chains parallel to [001] with a C(7) graph-set motif.