Synthesis of pyridazine acetic acid derivatives possessing aldose reductase inhibitory activity and antioxidant properties
摘要:
N-Acetic acid derivatives of 4-carboxy-6-arylpyridazin-3-ones were synthesized for the dual purpose of inhibiting aldose reductase and exhibiting antioxidant properties. All the prepared compounds showed a significant in vitro aldose reductase inhibitory effect (10(-5) M less than or equal to IC50 less than or equal to 10(-4) M). The spatial configuration of the most active derivative 4f (4-i-PrC6H4 at C-6, IC50 = 0 95 x 10(-5) M) was compared with pharmacophore requirements of the aldose reductase inhibitor site using a molecular modeling system. The antioxidant action of 4a-f was also studied in vitro. Compound 4c (4-ClC6H4 at C-6, IC50 = 1.56 x 10(-3) M) was the most effective at scavenging the superoxide anion whereas compound 4a (C6H5 at C-6, IC50 = 1.28 x 10(-3) M) was the most active at inhibiting lipid peroxidation. In addition, biological activities (log 1/IC50) for most of the data sets could be correlated directly to lipophilic, electronic and steric parameters.
Synthesis of pyridazine acetic acid derivatives possessing aldose reductase inhibitory activity and antioxidant properties
摘要:
N-Acetic acid derivatives of 4-carboxy-6-arylpyridazin-3-ones were synthesized for the dual purpose of inhibiting aldose reductase and exhibiting antioxidant properties. All the prepared compounds showed a significant in vitro aldose reductase inhibitory effect (10(-5) M less than or equal to IC50 less than or equal to 10(-4) M). The spatial configuration of the most active derivative 4f (4-i-PrC6H4 at C-6, IC50 = 0 95 x 10(-5) M) was compared with pharmacophore requirements of the aldose reductase inhibitor site using a molecular modeling system. The antioxidant action of 4a-f was also studied in vitro. Compound 4c (4-ClC6H4 at C-6, IC50 = 1.56 x 10(-3) M) was the most effective at scavenging the superoxide anion whereas compound 4a (C6H5 at C-6, IC50 = 1.28 x 10(-3) M) was the most active at inhibiting lipid peroxidation. In addition, biological activities (log 1/IC50) for most of the data sets could be correlated directly to lipophilic, electronic and steric parameters.
2-pyrrolidinones, pharmaceutical compositions containing these compounds
申请人:Thomae; Karl
公开号:US05455348A1
公开(公告)日:1995-10-03
The invention relates to cyclic imino derivatives of general formula B--X.sub.5 --X.sub.4 --X.sub.3 --X.sub.2 --X.sub.1 --A--Y--E(I) wherein A, B, E, X.sub.2 to X.sub.5 and Y are defined as in claim 1, the stereoisomers, tautomers, mixtures and salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting effects, pharmaceutical compositions which contain these compounds and processes for preparing them.
Heterobiarly derivatives and pharmaceutical compositions thereof
申请人:Karl Thomae GmbH
公开号:US05418233A1
公开(公告)日:1995-05-23
Heterobiaryl derivatives of the formula R.sub.1 NH--X.sub.1 --X.sub.2 --X.sub.3 --Y.sub.1 --Y.sub.2 --Y.sub.3 --Y.sub.4 --E (I) wherein R.sub.1, X.sub.1 to X.sub.3 and Y.sub.1 to Y.sub.4 are as defined herein, the tautomers, stereoisomers and mixtures thereof, and the salts, particularly the physiologically acceptable salts, thereof with organic or inorganic acids or bases. The derivatives have valuable pharmacological properties, such as inhibiting cell-cell aggregation and cell-matrix interactions.
Cyclische Iminoderivate, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung
申请人:Dr. Karl Thomae GmbH
公开号:EP0528369A2
公开(公告)日:1993-02-24
Die Erfindung betrifft cyclische Iminoderivate der allgemeinen Formel
B - X₅ - X₄ - X₃ - X₂ - X₁ - A - Y - E ,(I)
in der
A, B, E, X₂ bis X₅ und Y wie im Anspruch 1 definiert sind, deren Stereoisomere, deren Tautomere, deren Gemische und deren Salze, insbesondere deren physiologisch verträgliche Salze mit anorganischen oder organischen Säuren oder Basen, welche wertvolle pharmakologische Eigenschaften aufweisen, vorzugsweise aggregationshemmende Wirkungen, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung.
本发明涉及通式如下的环状亚氨基衍生物
b - x₅ - x₄ - x₃ - x₂ - x₁ - a - y - e ,(i)
其中
A、B、E、X₂至 X₅ 和 Y 如权利要求 1 所定义,它们的立体异构体、同分异构体、混合物和盐,特别是它们与无机或有机酸或碱的生理相容盐,这些盐具有重要的药理特性,最好是抗聚集作用,含有这些化合物的药物及其制备工艺。
Heterobiarylderivate, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung
申请人:Dr. Karl Thomae GmbH
公开号:EP0537696A1
公开(公告)日:1993-04-21
Die Erfindung betrifft Heterobiarylderivate der allgemeinen Formel
R₁NH - X₁ - X₂ - X₃ - Y₁ - Y₂ - Y₃ - Y₄ - E ,(I)
in der
R₁, X₁ bis X₃ und Y₁ bis Y₄ wie im Anspruch 1 definiert sind, deren Tautomere, deren Stereoisomere, deren Gemische und deren Salze, insbesondere deren physiologisch verträgliche Salze mit anorganischen oder organischen Säuren oder Basen, welche wertvolle pharmakologische Eigenschaften aufweisen, vorzugsweise aggregationshemmende Wirkungen, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung.