Triazole Ureas Act as Diacylglycerol Lipase Inhibitors and Prevent Fasting-Induced Refeeding
摘要:
Triazole ureas constitute a versatile class of irreversible inhibitors that target serine hydrolases in both cells and animal models. We have previously reported that triazole ureas can act as selective and CNS-active inhibitors for diacylglycerol lipases (DAGLs), enzymes responsible for the biosynthesis of 2-arachidonoylglycerol (2 -AG) that activates cannabinoid CB1 receptor. Here, we report the enantio- and diastereoselective synthesis and structure-activity relationship studies. We found that 2,4 -substituted triazole ureas with a biphenylmethanol group provided the most optimal scaffold. Introduction of a chiral ether substituent on the 5 -position of the piperidine ring provided ultrapotent inhibitor 38 (DH376) with picomolar activity. Compound 38 temporarily reduces fasting -induced refeeding of mice, thereby emulating the effect of cannabinoid' CB1-receptor inverse agonists. This was mirrored by 39 (DO34) but also by the negative control compound 40 (DO53) (which does not inhibit DAGL), which indicates the triazole ureas may affect the energy balance in mice through multiple molecular targets.
[EN] 1,2,4 TRIAZOLO [4, 3 -A] [1,5] BENZODIAZEPIN-5 (6H) -ONES AS AGONISTS OF THE CHOLECYSTOKININ-1 RECEPTOR (CCK-IR)<br/>[FR] 1,2,4 TRIAZOLO[4,3-A][1,5] BENZODIAZÉPIN-5(6H)-ONES UTILISÉES COMME AGONISTES DU RÉCEPTEUR DE LA CHOLÉCYSTOKININE-1 (CCK-1R)
申请人:PFIZER
公开号:WO2010067233A1
公开(公告)日:2010-06-17
This invention relates to CCK-1 R agonists of Formula (I) wherein R1-R5 and X are as defined in the specificiation, as well as pharmaceutical compositions containing the compounds and methods of use of the compounds and compositions. The compounds are useful in treating obesity, type 2 diabetes and associated diseases.
Catalytic Asymmetric Synthesis of Substituted Morpholines and Piperazines
作者:Huimin Zhai、Andrey Borzenko、Ying Yin Lau、Shin Hye Ahn、Laurel L. Schafer
DOI:10.1002/anie.201206826
日期:2012.12.3
Under two conditions: Hydroamination catalyzed by group 4 metals is featured in the modular and enantioselective synthesis of 3‐substitutedmorpholines and the diastereoselective synthesis of 2,5‐substitutedpiperazines.
Catalytic Kinetic Resolution of Cyclic Secondary Amines
作者:Michael Binanzer、Sheng-Ying Hsieh、Jeffrey W. Bode
DOI:10.1021/ja209472h
日期:2011.12.14
The catalytic resolution of racemic cyclic amines has been achieved by an enantioselective amidation reaction featuring an achiral N-heterocyclic carbene catalyst and a new chiral hydroxamic acid cocatalyst working in concert. The reactions proceed at room temperature, do not generate nonvolatile byproducts, and provide enantioenriched amines by aqueous extraction.
Stereoelectronic Basis for the Kinetic Resolution of N-Heterocycles with Chiral Acylating Reagents
作者:Sheng-Ying Hsieh、Benedikt Wanner、Philip Wheeler、André M. Beauchemin、Tomislav Rovis、Jeffrey W. Bode
DOI:10.1002/chem.201402818
日期:2014.6.10
The kineticresolution of N‐heterocycles with chiralacylating agents reveals a previously unrecognized stereoelectronic effect in amine acylation. Combined with a new achiral hydroxamate, this effect makes possible the resolution of various N‐heterocycles by using easily prepared reagents. A transition‐state model to rationalize the stereochemical outcome of this kineticresolution is also proposed
A group of diastereopure α-benzotriazolyl 1-azacycloalka[2,1-b][1,3]oxazines were prepared from non-racemic Betti base and they were employed as the versatile precursors for the preparation of chiral ligands and chiral substituted azacyclics with significant advantages in the stereoselectivity.