Discovery of Functionally Selective 7,8,9,10-Tetrahydro-7,10-ethano-1,2,4-triazolo[3,4-<i>a</i>]phthalazines as GABA<sub>A</sub> Receptor Agonists at the α<sub>3</sub> Subunit
作者:Michael G. N. Russell、Robert W. Carling、John R. Atack、Frances A. Bromidge、Susan M. Cook、Peter Hunt、Catherine Isted、Matt Lucas、Ruth M. McKernan、Andrew Mitchinson、Kevin W. Moore、Robert Narquizian、Alison J. Macaulay、David Thomas、Sally-Anne Thompson、Keith A. Wafford、José L. Castro
DOI:10.1021/jm040883v
日期:2005.3.1
We have previously identified the 7,8,9,10-tetrahydro-7,10-ethano-1,2,4-triazolo[3,4-a]phthalazine (1) as a potent partial agonist for the alpha(3) receptor subtype with 5-fold selectivity in binding affinity over alpha(1). This paper describes a detailed investigation of the substituents on this core structure at both the 3- and 6-positions. Despite evaluating a wide range of groups, the maximum selectivity
The subject invention relates to pyrimidine-thioalkyl and alkylether compounds of Formula I
and pyrimidine-thioalkyl and alkylethers of Formula IA, namely the compounds of Formula I where
R4 is selected from the group consisting of -H or -NR15R16 where R15 is -H and R16 is -H, C1-C6 alkyl, -NH2 or R15 and R16 taken together with the -N form 1-pyrrolidino, 1-morpholino or 1-piperidino; and
R6 is selected from the group consisting of -H, or halo (preferably -Cl); with the overall provisio that R4 and R6 are not both -H;
The compounds of Formula IA are useful in the treatment of individuals who are HIV positive.
The present invention provides imidazotriazinone compounds which are inhibitors of phosphodiesterase 9 and pharmaceutically acceptable salt thereof. The present invention further provides processes, pharmaceutical compositions, pharmaceutical preparations and pharmaceutical use of the compounds in the treatment of PDE9 associated diseases or disorders in mammals, including humans.
Symmetrical Bis(heteroarylmethoxyphenyl)alkylcarboxylic Acids as Inhibitors of Leukotriene Biosynthesis
作者:Teodozyj Kolasa、David E. Gunn、Pramila Bhatia、Anwer Basha、Richard A. Craig、Andrew O. Stewart、Jennifer B. Bouska、Richard R. Harris、Keren I. Hulkower、Peter E. Malo、Randy L. Bell、George W. Carter、Clint D. W. Brooks
DOI:10.1021/jm000180n
日期:2000.8.1
challenge in actively sensitized guinea pigs, 47.Na dosed orally blocked bronchoconstriction with an ED(50) = 0.4 mg/kg, the most potent activity we have observed for any leukotrieneinhibitor in this model. The mode of inhibitory action of 47.Na occurs at the stage of 5-lipoxygenase biosynthesis as it blocks both leukotriene pathways leading to LTB(4) and LTC(4) but not PGH(2) biosynthesis. However,
The invention relates to the use of quinoxaline derivatives as photostable UV filters in cosmetic and pharmaceutical preparations for protecting the human epidermis or human hair against UV radiation, especially in the 280-400 nm range.