Defining the key pharmacophore elements of PF-04620110: Discovery of a potent, orally-active, neutral DGAT-1 inhibitor
摘要:
DGAT-1 is an enzyme that catalyzes the final step in triglyceride synthesis. mRNA knockout experiments in rodent models suggest that inhibitors of this enzyme could be of value in the treatment of obesity and type II diabetes. The carboxylic acid-based DGAT-1 inhibitor 1 was advanced to clinical trials for the treatment of type 2 diabetes, despite of the low passive permeability of 1. Because of questions relating to the potential attenuation of distribution and efficacy of a poorly permeable agent, efforts were initiated to identify compounds with improved permeability. Replacement of the acid moiety in 1 with an oxadiazole led to the discovery of 52, which possesses substantially improved passive permeability. The resulting pharmacodynamic profile of this neutral DGAT-1 inhibitor was found to be similar to 1 at comparable plasma exposures. (C) 2013 Elsevier Ltd. All rights reserved.
A triazole compound of the formula (I) or a pharmacologically salt thereof:
1
wherein X represents a group of formula X—OH which has antifungal activity, L represents an -(adjacently substituted C
6
-C
10
aryl)-CH
2
group and R represents a —P(═O)(OH)
2
group.
Provided are a compound having an excellent hypoglycemic action, or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition having an excellent therapeutic effect and/or prophylactic effect on type 1 diabetes, type 2 diabetes, and the like, which cause an increase in the blood sugar level due to abnormal sugar metabolism. A compound represented by general formula (I), or a pharmaceutically acceptable salt thereof, is disclosed.
In this study, the synthesis and evaluation of a number of esters of CS-758 as injectable prodrugs are described. Phosphoryl ester 1a was soluble in water (> 30 mg/mL) and was converted to CS-758 in human liver microsome. It was also converted to CS- 758 in rats after iv administration, wherein the bioavailability of CS- 758 was 53%. Compound 1a ( iv) reduced the viable cell counts in kidneys in a murine systemic Candida albicans infection model, wherein the effect was comparable to or slightly superior to that of CS-58 (po). The prodrug 1a proved to be a promising injectable antifungal agent whose further evaluation is warranted. (C) 2009 Elsevier Ltd. All rights reserved.
4-(1,2,4-dioxazol-3-yl)benzamides for the treatment of diabetes and obesity