5-Substituted Imidazole-4-acetic Acid Analogues: Synthesis, Modeling, and Pharmacological Characterization of a Series of Novel γ-Aminobutyric AcidC Receptor Agonists
摘要:
A series of ring-substituted analogues of imidazole-4-acetic acid (IAA, 4), a partial agonist at both GABA(A) and GABA(C) receptors (GABA = gamma-aminobutyric acid), have been synthesized. The synthesized compounds 8a-1 have been evaluated as ligands for the alpha(1)beta(2)gamma(2S) GABA(A) receptors and the rho(1) GABA(C) receptors using the FLIPR membrane potential (FMP) assay and by electrophysiology techniques. None of the tested compounds displayed activity at the GABA(A) receptors at concentrations up to 1000 mu M. However, the 5-Me, 5-Ph, 5-p-Me-Ph, and 5-p-F-Ph IAA analogues, 8a,c,f,g, displayed full agonist activities at the rho(1) receptors in the FMP assay (EC50 in the range 22-420 mu M). Ligand-protein docking identified the Thr129 in the alpha(1) subunit and the corresponding Ser168 residue in rho(1) as determinants of the selectivity displayed by the 5-substituted IAA analogues. The fact that GABA, 4, and 8a displayed decreased agonist potencies at a rho(1)Ser168Thr mutant compared to the WT rho(1) receptor strongly supported this hypothesis. However, in contrast to GABA and 4, which exhibited increased agonist potencies at a alpha(1)(Thr129Ser)beta(2)gamma(2) mutant compared to WT GABA(A) receptor, the data obtained for 8a at the WT and mutant receptors were nonconclusive.
5-Substituted Imidazole-4-acetic Acid Analogues: Synthesis, Modeling, and Pharmacological Characterization of a Series of Novel γ-Aminobutyric AcidC Receptor Agonists
摘要:
A series of ring-substituted analogues of imidazole-4-acetic acid (IAA, 4), a partial agonist at both GABA(A) and GABA(C) receptors (GABA = gamma-aminobutyric acid), have been synthesized. The synthesized compounds 8a-1 have been evaluated as ligands for the alpha(1)beta(2)gamma(2S) GABA(A) receptors and the rho(1) GABA(C) receptors using the FLIPR membrane potential (FMP) assay and by electrophysiology techniques. None of the tested compounds displayed activity at the GABA(A) receptors at concentrations up to 1000 mu M. However, the 5-Me, 5-Ph, 5-p-Me-Ph, and 5-p-F-Ph IAA analogues, 8a,c,f,g, displayed full agonist activities at the rho(1) receptors in the FMP assay (EC50 in the range 22-420 mu M). Ligand-protein docking identified the Thr129 in the alpha(1) subunit and the corresponding Ser168 residue in rho(1) as determinants of the selectivity displayed by the 5-substituted IAA analogues. The fact that GABA, 4, and 8a displayed decreased agonist potencies at a rho(1)Ser168Thr mutant compared to the WT rho(1) receptor strongly supported this hypothesis. However, in contrast to GABA and 4, which exhibited increased agonist potencies at a alpha(1)(Thr129Ser)beta(2)gamma(2) mutant compared to WT GABA(A) receptor, the data obtained for 8a at the WT and mutant receptors were nonconclusive.
Bi-functional complexes and methods for making and using such complexes
申请人:Gouliaev Alex Haahr
公开号:US11225655B2
公开(公告)日:2022-01-18
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
BI-FUNCTIONAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES
申请人:Nuevolution A/S
公开号:EP2558577A1
公开(公告)日:2013-02-20
BI-FUNCTINAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES
申请人:Gouliaev Alex Haahr
公开号:US20130281324A1
公开(公告)日:2013-10-24
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
[EN] BI-FUNCTIONAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES<br/>[FR] COMPLEXES BIFONCTIONNELS ET PROCÉDÉS DE FABRICATION ET D'UTILISATION DE TELS COMPLEXES
申请人:NUEVOLUTION AS
公开号:WO2011127933A1
公开(公告)日:2011-10-20
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
5-Substituted Imidazole-4-acetic Acid Analogues: Synthesis, Modeling, and Pharmacological Characterization of a Series of Novel γ-Aminobutyric Acid<sub>C</sub> Receptor Agonists
作者:Christian Madsen、Anders A. Jensen、Tommy Liljefors、Uffe Kristiansen、Birgitte Nielsen、Camilla P. Hansen、Mogens Larsen、Bjarke Ebert、Benny Bang-Andersen、Povl Krogsgaard-Larsen、Bente Frølund
DOI:10.1021/jm070447j
日期:2007.8.1
A series of ring-substituted analogues of imidazole-4-acetic acid (IAA, 4), a partial agonist at both GABA(A) and GABA(C) receptors (GABA = gamma-aminobutyric acid), have been synthesized. The synthesized compounds 8a-1 have been evaluated as ligands for the alpha(1)beta(2)gamma(2S) GABA(A) receptors and the rho(1) GABA(C) receptors using the FLIPR membrane potential (FMP) assay and by electrophysiology techniques. None of the tested compounds displayed activity at the GABA(A) receptors at concentrations up to 1000 mu M. However, the 5-Me, 5-Ph, 5-p-Me-Ph, and 5-p-F-Ph IAA analogues, 8a,c,f,g, displayed full agonist activities at the rho(1) receptors in the FMP assay (EC50 in the range 22-420 mu M). Ligand-protein docking identified the Thr129 in the alpha(1) subunit and the corresponding Ser168 residue in rho(1) as determinants of the selectivity displayed by the 5-substituted IAA analogues. The fact that GABA, 4, and 8a displayed decreased agonist potencies at a rho(1)Ser168Thr mutant compared to the WT rho(1) receptor strongly supported this hypothesis. However, in contrast to GABA and 4, which exhibited increased agonist potencies at a alpha(1)(Thr129Ser)beta(2)gamma(2) mutant compared to WT GABA(A) receptor, the data obtained for 8a at the WT and mutant receptors were nonconclusive.