3-[3-Fluoro-5-(5-pyridin-2-yl-2H-tetrazol-2-yl)phenyl]-4-methylpyridine: a highly potent and orally bioavailable metabotropic glutamate subtype 5 (mGlu5) receptor antagonist.
Structure-activity relationship studies performed around 3-fluoro-5-(5-pyridin-2-yl-2H-tetrazol-2-yl)benzonitrile for the purpose of developing novel mGlu5 receptor antagonists are described. Synthesis of a series of four-ring tetrazoles led to the discovery of 3-[3-fluoro-5-(5-pyridin-2-yl-2H-tetrazol-2-yl)phenyl]-4-methylpyridine, a highly potent, brain penetrant, azole-based mGlu5 receptor antagonist.
Poon
Steve F
SF
Department of Medicinal Chemistry, Merck Research Laboratories, MRLSDB2, 3535 General Atomics Court, San Diego, CA 92121, USA.
Eastman
Brian W
BW
Chapman
Deborah F
DF
Chung
Janice
J
Cramer
Merryl
M
Holtz
Gregory
G
Cosford
Nicholas D P
ND
Smith
Nicholas D
ND
D000284:Administration, Oral; D000818:Animals; D014151:Anti-Anxiety Agents / Q000008:administration & dosage / Q000138:chemical synthesis / Q000493:pharmacokinetics*; D001682:Biological Availability; D015394:Molecular Structure; D009570:Nitriles / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics; D051381:Rats; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate / Q000037:antagonists & inhibitors*; D013329:Structure-Activity Relationship; D013777:Tetrazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics
C497740:3-(3-fluoro-5-(5-pyridin-2-yl-2H-tetrazol-2-yl)phenyl)-4-methylpyridine; C497739:3-fluoro-5-(5-pyridin-2-yl-2H-tetrazol-2-yl)benzonitrile; D014151:Anti-Anxiety Agents; D009570:Nitriles; D011725:Pyridines; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate; D013777:Tetrazoles