Convergent Synthesis and Pharmacology of Substituted Tetrazolyl-2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid Analogues
摘要:
The synthesis and pharmacological characterization of 1- and 2-alkyltetrazolyl analogues of (RS)-2-amino-3-[3-hydroxy-5-(2-methyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid (2-Me-Tet-AMPA), a highly potent and selective agonist at AMPA receptors, are presented. A shorter and more convergent synthetic route than previously described, employing a new method for introducing the amino acid moiety, was developed for these derivatives. The 2-substituted isomers were selective agonists, and their activity correlated inversely with the size of the substituent. Structural explanations of the structure-activity relationship are provided.
Synthesis and Biological Evaluation of 4-(Aminomethyl)-1-hydroxypyrazole Analogues of Muscimol as γ-Aminobutyric Acid<sub>A</sub> Receptor Agonists
作者:Jette G. Petersen、Rikke Bergmann、Henriette A. Møller、Charlotte G. Jørgensen、Birgitte Nielsen、Jan Kehler、Karla Frydenvang、Jesper Kristensen、Thomas Balle、Anders A. Jensen、Uffe Kristiansen、Bente Frølund
DOI:10.1021/jm301473k
日期:2013.2.14
A series of bioisosteric 4-(aminomethyl)-1-hydroxypyrazole (4-AHP) analogues of muscimol, a GABAA receptor agonist, has been synthesized and pharmacologically characterized at native and selected recombinant GABAA receptors. The unsubstituted 4-AHP analogue (2a) (EC50 19 μM, Rmax 69%) was a moderately potent agonist at human α1β2γ2 GABAA receptors, and in SAR studies substitutions in the 3- and/or
Convergent Synthesis and Pharmacology of Substituted Tetrazolyl-2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid Analogues
作者:Stine B. Vogensen、Rasmus P. Clausen、Jeremy R. Greenwood、Tommy N. Johansen、Darryl S. Pickering、Birgitte Nielsen、Bjarke Ebert、Povl Krogsgaard-Larsen
DOI:10.1021/jm050014l
日期:2005.5.1
The synthesis and pharmacological characterization of 1- and 2-alkyltetrazolyl analogues of (RS)-2-amino-3-[3-hydroxy-5-(2-methyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid (2-Me-Tet-AMPA), a highly potent and selective agonist at AMPA receptors, are presented. A shorter and more convergent synthetic route than previously described, employing a new method for introducing the amino acid moiety, was developed for these derivatives. The 2-substituted isomers were selective agonists, and their activity correlated inversely with the size of the substituent. Structural explanations of the structure-activity relationship are provided.