Compounds of Formula I are useful as antagonists of TRPM8. Such compounds are useful in treating a number of TRPM8 mediated disorders and conditions and may be used to prepare medicaments and pharmaceutical compositions useful for treating such disorders and conditions. Examples of such disorders include, but are not limited to, migraines and neuropathic pain. Compounds of Formula I have the following structure:
where the definitions of the variables are provided herein.
Compounds of Formula I are useful as antagonists of TRPM8. Such compounds are useful in treating a number of TRPM8 mediated disorders and conditions and may be used to prepare medicaments and pharmaceutical compositions useful for treating such disorders and conditions. Examples of such disorders include, but are not limited to, migraines and neuropathic pain. Compounds of Formula I have the following structure:
where the definitions of the variables are provided herein.
A series of 2-pyridone-containing imidazoline derivatives was synthesized and evaluated as neuropeptide Y Y5 receptor antagonists. Optimization of the 2-pyridone structure on the 2-position of the imidazoline ring led to identification of 1-(difluoromethyl)-5-[(4S,5S)-4-(4-fluorophenyl)-4-(6-fluoropyridin- 3-yl)-5-methyl-4,5-dihydro-1H-imidazol-2-yl] pyridin-2(1H)-one (7m). Compound 7m displayed statistically significant inhibition of food intake in an agonist-induced food intake model in SD rats and no adverse cardiovascular effects in anesthetized dogs. In addition, markedly higher brain penetrability and a lower plasma Occ90 value were observed in P-gp-deficient mdr1a (-/-) mice compared to mdr1a (+/+) mice after oral administration of 7m. (C) 2009 Elsevier Ltd. All rights reserved.