Design, synthesis and structure–activity relationship of new HSL inhibitors guided by pharmacophore models
摘要:
Hormone-sensitive lipase (HSL) is a critical enzyme involved in the hormonally regulated release of fatty acids and glycerol from adipocyte lipid stores. Its inhibition may improve insulin sensitivity and blood glucose handling in type 2 diabetes. Accordingly, many small-molecule HSL inhibitors have recently been identified. In continuation of our efforts for discovery of new HSL inhibitors, we prepared a variety of esters, amides, sulfonamides and sulfonate esters capable of fitting two pharmacophore models that we developed and published earlier. The tested compounds were synthesized via coupling reactions of aroyl chlorides or sulfonyl chlorides with phenols, amines and related derivatives. Our efforts led to the identification of interesting compounds of low micromolar anti-HSL bioactivities, which have potential to be developed into effective antidiabetic agents.
Promotion of the [PPN][Rh(CO)4]-catalysed carbonylation of nitrobenzene by 2-hydroxypyridine and related molecules: an apparent bifunctional activation
作者:Fabio Ragaini、Emma Gallo、Sergio Cenini
DOI:10.1016/s0022-328x(99)00502-1
日期:2000.1
2-Hydroxypyridine and related molecules have a large activating effect on the previously reported [PPN][Rh(CO)4]-based catalytic system for the reductive carbonylation of nitrobenzene to methylphenylcarbamate (PPN+=(PPh3)2N+). The effect is not due to the known 2-hydroxypyridine–2-pyridone tautomeric equilibrium, since 4-hydroxypyridine, for which the same tautomeric equilibrium exists, completely
2-羟基吡啶和相关分子对先前报道的基于[PPN] [Rh(CO)4 ]的催化体系具有很大的活化作用,该体系可将硝基苯还原羰基化为苯基氨基甲酸甲酯(PPN + =(PPh 3)2 N +) 。该作用不是由于已知的2-羟基吡啶-2-吡啶酮互变异构平衡所致,因为存在相同互变异构平衡的4-羟基吡啶完全抑制了反应。在先前分离的金属环配合物[PPN] [,据信是催化反应的中间体。然而,催化反应速率对苯胺浓度的依赖性表明,发现的化学计量反应的影响不可能是与催化反应的加速有关的影响。因此,存在两种不同的作用,这两种作用似乎都归因于启动子分子中碱性位点和酸性位点的近端位置。
METHODS FOR TREATING HEPATITIS C
申请人:Karp Gary Mitchell
公开号:US20120009142A1
公开(公告)日:2012-01-12
In accordance with the present invention, compounds that inhibit viral replication, preferably Hepatitis C Virus (HCV) replication, have been identified, and methods for their use provided. In one aspect of the invention, compounds useful in the treatment or prevention of a viral infection are provided. In another aspect of the invention, compounds useful in the treatment or prevention of HCV infection are provided.
Design, synthesis and structure–activity relationship of new HSL inhibitors guided by pharmacophore models
作者:Jumana D. Al-Shawabkeh、Afaf H. Al-Nadaf、Lina A. Dahabiyeh、Mutasem O. Taha
DOI:10.1007/s00044-013-0616-2
日期:2014.1
Hormone-sensitive lipase (HSL) is a critical enzyme involved in the hormonally regulated release of fatty acids and glycerol from adipocyte lipid stores. Its inhibition may improve insulin sensitivity and blood glucose handling in type 2 diabetes. Accordingly, many small-molecule HSL inhibitors have recently been identified. In continuation of our efforts for discovery of new HSL inhibitors, we prepared a variety of esters, amides, sulfonamides and sulfonate esters capable of fitting two pharmacophore models that we developed and published earlier. The tested compounds were synthesized via coupling reactions of aroyl chlorides or sulfonyl chlorides with phenols, amines and related derivatives. Our efforts led to the identification of interesting compounds of low micromolar anti-HSL bioactivities, which have potential to be developed into effective antidiabetic agents.