The present description relates to fused polycyclic 2-pyridinone compounds and forms and pharmaceutical compositions thereof and methods of using such compounds, forms or compositions thereof for treating or ameliorating a wild-type or drug-resistant form of N. gonorrhoeae or N. meningitides. A compound of Formula (la), Formula (lb) or Formula (Ic), or a form thereof, wherein the dashed lines represent one or more double bonds optionally present where allowed by available valences.
Many derivatives of sodium alkylazulene sulfonates were newly synthesized and their antiulcer activites were examined in Shay pylorus-ligated rats. The values of lipophilicity (log P), a physicochemical parameter, of these new azulene derivatives were also examined in order to study the structure-activity relationship. The optimum value of log P which gave maximum anti-ulcer activity was about -1.0. Among the derivatives of azulene examined, 3-ethyl-7-isopropylazulene-1-sulfonic acid sodium salt (KT1-32) exhibited an extremely potent inhibitory action against Shay ulcer, and its antipeptic activity was more potent than than of guaiazulene sodium sulfonate (GAS). Furthermore, KT1-32 was extremely stable on heating as compared to GAS.
The present invention relates to compounds of formula (I) or pharmaceutically acceptable salts or solvates thereof, processes for their preparation, pharmaceutical compositions containing these compounds, and their use in the treatment of allergic disorders, such as allergic rhinitis and asthma.
Several 3-substituted-2H-cyclohepta[b]furan-2-one derivatives were prepared and tested in vitro for positive inotropic character. Introduction of an isopropyl group at the 5-position of compound 8a caused an increase of PIC50 (negative logarithm of the dosage which increases the contractile force by 50%) from 4.48 to 5.10. Among the 5-isopropyl-8-alkoxy compounds, the isopropoxy compound 12f had the most potent activity with a PIC50 value of 5.99. Conversion of the ester group at the 3-position to a methylene group and of the alkoxy group at the 8-position to a substituted amino group caused a decrease in activity. The most active compound, 12f, was also found to have a weaker heart rate (HR)-increasing effect compared to milrinone and amrinone.
Intramolecular Hydroamination with Homogeneous Zinc Catalysts: Evaluation of Substituent Effects inN,N′-Disubstituted Aminotroponiminate Zinc Complexes
作者:Maximilian Dochnahl、Karolin Löhnwitz、Jens-Wolfgang Pissarek、Mustafa Biyikal、Sabrina R. Schulz、Sebastian Schön、Nils Meyer、Peter W. Roesky、Siegfried Blechert
DOI:10.1002/chem.200601765
日期:2007.8.6
ethers, and aryl groups were employed. The corresponding aminotroponiminatezinccomplexes were then synthesized and characterized by a number of techniques, including by X-ray crystallography. Herein we report on the investigations into their activity in the intramolecular hydroamination of nonactivated alkenes. We also demonstrate that complexes bearing ligands with cyclic alkyl groups show superior