نتایج جستجو برای: isoindole
تعداد نتایج: 217 فیلتر نتایج به سال:
In the tetra-hydro-isoindole moiety of the title compound, C(17)H(17)NO(3)S, the six-membered ring assumes a boat configuration and the -S=O group bridges the prow and stern of the boat. The phenyl ring is oriented at a dihedral angle of 83.2 (1)° with respect to the pyrrole ring. In the crystal, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network. A weak C...
The syntheses, photophysical properties and in vitro biological behavior of a series of nine Zn((II))-phthalocyanines (ZnPcs) bearing one to eight positively-charged trimethylaminophenoxy groups are reported. All ZnPcs are highly soluble in polar organic solvents, and show fluorescence and singlet oxygen quantum yields in the ranges 0.11-0.21 and 0.16-0.47, respectively. The cytotoxicity of the...
صرع دومین اختلال شایع نورولوژیک است که در آن به علت وجود اختلالات زمینه ای مزمن تشنج های مکرر به وقوع می پوندد. از این رو داروهای زیادی با خاصیت ضد صرع روانه بازار گردیدند. داروهای موجود دارای عوارض جانبی گسترده ای بودند.مثالی از این ساختار های جدید مشتقاتی هستند که دارای فارماکوفور فتالیمیدی ( isoindole-1 3-dione ) می باشنددر این رساله مشتقات جدید استخلاف شده در ناحیه ی 2 و 5 فتالیمیدی سنتز و ...
The CuI- or Ag₂CO₃-catalyzed [3+2] cycloaddition of propargyl-substituted dihydroisoindolin-1-one (3) with arylnitrile oxides 1a-d (Ar = Ph, p-MeC₆H₄, p-MeOC₆H₄, p-ClC₆H₄) produces in good yields novel 3,5-disubstituted isoxazoles 4 of the ethyl-2-benzyl-3-oxo-1-((3-arylisoxazol-5yl)methyl)-2,3-dihydro-1H-isoindole-1-carboxylate type. With aryl azides 2a-d (Ar = Ph, p-MeC₆H₄, p-OMeC₆H₄, p-ClC₆H...
Chart 1) were reported to inhibit colon and lung tumors in a patent literature. Subsequently, we found that 3-aryl b-carbolin-1-ones (2) inhibit the proliferation of HeLa cells with IC50 values in the low micromolar range and that the aromatic substitution on C3 in 2 proved to be essential for their biological activity. To broaden the scope of previous studies, aryl-substituted 2-pyridone-conta...
A capillary electrophoretic method for a high-sensitivity analysis of cyanide has been developed. Cyanide was derivatized with 2,3-naphthalenedialdehyde and taurine to give a fluorescent product of 1-cyanobenz[f]isoindole. This compound was detected with high sensitivity by fluorescence detection. The detection limit was 0.1 ng/mL, and the calibration curve was linear over the range 0.1-200 ng/...
The first total synthesis of a norsesquiterpene alkaloid (R)-8-hydroxy-4,7,7-trimethyl-7,8-dihydrocyclopenta[e]isoindole-1,3(2H,6H)-dione, isolated from the mushroom-forming fungus Flammulina velutipes, in both racemic and enantiomeric pure forms, is reported. The (-)-enantiomer of the natural product has been synthesized from the D-(-)-pantolactone chiral pool. The synthesis features a one-pot...
In situ activation of 3-arylpropiolic acids with T3P® (n-propylphosphonic acid anhydride) initiates a domino reaction furnishing 4-arylnaphtho[2,3-c]furan-1,3-diones in excellent yields. Upon employing these anhydrides as reactive intermediates blue-luminescent 4-aryl-1H-benzo[f]isoindole-1,3(2H)-diones are formed by consecutive pseudo three-component syntheses in a one-pot fashion. The Stokes ...
Molecules of the title compound [systematic name: 5-nitro-1H-isoindole-1,3(2H)-dione], C14H8N2O4, adopt a conformation in the solid state which renders them chiral, and they are linked by three distinct types of direction-specific intermolecular interaction. The molecules are linked by two C-H...O hydrogen bonds [H...O = 2.50 and 2.52 A, C...O = 3.118 (7) and 3.294 (7) A, and C-H...O = 123 and ...
In the title compound, C(23)H(20)N(2)O(3)·CH(3)OH, the hexa-hydro-1H-benzo[f]isoindole and indoline rings are planar, with maximum deviations of 0.092 (1) and -0.095 (1) Å, respectively. The dihedral angle between these two rings is 88.03 (4)°. An O-H⋯N inter-action links the main mol-ecule and the methanol solvent mol-ecule. An intra-molecular C-H⋯O inter-action forms an S(6) ring motif. In th...
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