TY - JOUR
T1 - Synthesis of bivalent beta2-adrenergic and adenosine A 1 receptor ligands
AU - Karellas, Panagiotis
AU - McNaughton, Michael
AU - Baker, Stephen P
AU - Scammells, Peter John
PY - 2008
Y1 - 2008
N2 - Research in the area of simutaneously targeting more than one G protein-coupled receptor (GPCR) has increased in recent times. By exploiting the cross talk between the beta(2)-adrenergic (beta(2)AR) and adenosine A(1) receptors (A(1)AR) on adenylate cyclase activity, we synthesized a series of bivalent agonists for both GPCRs to generate responses from more than one receptor. We have demonstrated a relationship between the various beta(2)-adrenergic and A(1) adenosine bivalent parameters of linker and bifunctionality by using data that are drawn from in vitro assays. The hexyl-linked 12e (K-i, 311 nM) and butyl-linked 12c (K-i, 863 nM) bivalent compounds displayed reasonable binding affinities for the PAR when compared with the control (-)isoproterenol (K-i, 136 nM), and both compounds also exhibited a persuasive bifunctional trend for both receptors at various drug concentrations. The bivalent compound 12e was also found to have significant EC50 potency (6 nM) at the beta(2)AR in DDT cells.
AB - Research in the area of simutaneously targeting more than one G protein-coupled receptor (GPCR) has increased in recent times. By exploiting the cross talk between the beta(2)-adrenergic (beta(2)AR) and adenosine A(1) receptors (A(1)AR) on adenylate cyclase activity, we synthesized a series of bivalent agonists for both GPCRs to generate responses from more than one receptor. We have demonstrated a relationship between the various beta(2)-adrenergic and A(1) adenosine bivalent parameters of linker and bifunctionality by using data that are drawn from in vitro assays. The hexyl-linked 12e (K-i, 311 nM) and butyl-linked 12c (K-i, 863 nM) bivalent compounds displayed reasonable binding affinities for the PAR when compared with the control (-)isoproterenol (K-i, 136 nM), and both compounds also exhibited a persuasive bifunctional trend for both receptors at various drug concentrations. The bivalent compound 12e was also found to have significant EC50 potency (6 nM) at the beta(2)AR in DDT cells.
UR - http://www.scopus.com/record/display.url?eid=2-s2.0-53549115957&origin=inward&txGid=XVPCMosuMlC6mg2BKxb1CS5%3a16
M3 - Article
SN - 0022-2623
VL - 51
SP - 6128
EP - 6137
JO - Journal of Medicinal Chemistry
JF - Journal of Medicinal Chemistry
IS - 19
ER -