The Novel Ketoprofen Amides - Synthesis and Biological Evaluation as Antioxidants, Lipoxygenase Inhibitors and Cytostatic Agents
摘要:
The novel amides of ketoprofen and its reduced derivatives (5a–f, 4a–n, 6a–g) with aromatic and cycloalkyl amines or hydroxylamines were prepared and screened for their reducing and cytostatic activity as well as for their ability to inhibit soybean lipoxygenase and lipid peroxidation. 1,1‐Diphenyl‐picrylhydrazyl test for reducing ability revealed that ketoprofen amides were more potent antioxidants than the amides of the reduced ketoprofen derivatives. The most active compound was benzhydryl ketoprofen amide 5f. Lipoxygenase inhibition of the tested compounds varied from strong to very weak. The most potent compound was benzhydryl derivative 6f (IC50 = 20.5 μm). Aromatic and cycloalkyl amides 4 and 5 were more potent lipoxygenase inhibitors than derivatives with carboxylic group. Aromatic amides of series 4 and 5 showed excellent lipid peroxidation inhibition (92.2–99.9%). On the other hand, the most pronounced cytostatic activity was exerted by O‐benzyl derivative 4i, although in general all tested reduced and non‐reduced lipophilic derivatives showed similar activity.
The Novel Ketoprofen Amides - Synthesis and Biological Evaluation as Antioxidants, Lipoxygenase Inhibitors and Cytostatic Agents
摘要:
The novel amides of ketoprofen and its reduced derivatives (5a–f, 4a–n, 6a–g) with aromatic and cycloalkyl amines or hydroxylamines were prepared and screened for their reducing and cytostatic activity as well as for their ability to inhibit soybean lipoxygenase and lipid peroxidation. 1,1‐Diphenyl‐picrylhydrazyl test for reducing ability revealed that ketoprofen amides were more potent antioxidants than the amides of the reduced ketoprofen derivatives. The most active compound was benzhydryl ketoprofen amide 5f. Lipoxygenase inhibition of the tested compounds varied from strong to very weak. The most potent compound was benzhydryl derivative 6f (IC50 = 20.5 μm). Aromatic and cycloalkyl amides 4 and 5 were more potent lipoxygenase inhibitors than derivatives with carboxylic group. Aromatic amides of series 4 and 5 showed excellent lipid peroxidation inhibition (92.2–99.9%). On the other hand, the most pronounced cytostatic activity was exerted by O‐benzyl derivative 4i, although in general all tested reduced and non‐reduced lipophilic derivatives showed similar activity.
[EN] 2-ARYL-PROPIONAMIDE DERIVATIVES USEFUL AS BRADYKININ RECEPTOR ANTAGONISTS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM<br/>[FR] DÉRIVÉS DE 1-ARYL-PROPIONAMIDE UTILES COMME ANTAGONISTES DES RÉCEPTEURS DE LA BRADYKININE ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
申请人:DOMPE SPA
公开号:WO2011051375A1
公开(公告)日:2011-05-05
(R,S) 2-aryl-propionamide derivatives, or their single enantiomers (R) and (S) are disclosed useful in the treatment or prevention of symptoms and disorders such as pain and inflammation associated with the bradykinin B1 pathway.
2-aryl-propionamide derivatives useful as bradykinin receptor antagonists and pharmaceutical compositions containing them
申请人:Dompe S.p.A.
公开号:EP2316820A1
公开(公告)日:2011-05-04
(R,S) 2-aryl-propionamide derivatives, or their single enantiomers (R) and (S) are disclosed useful in the treatment or prevention of symptoms and disorders such as pain and inflammation associated with the bradykinin B1 pathway.
2-ARYL-PROPIONAMIDE DERIVATIVES USEFUL AS BRADYKININ RECEPTOR ANTAGONISTS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
申请人:Beccari Andrea
公开号:US20120316169A1
公开(公告)日:2012-12-13
(R,S) 2-aryl-propionamide derivatives, or their single enantiomers (R) and (S) are disclosed useful in the treatment or prevention of symptoms and disorders such as pain and inflammation associated with the bradykinin B1 pathway.
Efficient catalyst-free direct amidation of non-activated carboxylic acids from carbodiimides
作者:Mehmet Mart、Janusz Jurczak、Idris Karakaya
DOI:10.1039/d2ob01322c
日期:——
A novel and efficient catalyst- and activating agent-free amidationmethod via direct amidation of carboxylic acids where carbodiimides act as a reagent instead of an activating agent is reported. The reaction is conducted under non-traditional coupling conditions where a higher temperature is employed. Besides not using stoichiometric ratios of activating agent or catalyst, this approach is made even