4-phenyl-4-oxo-butanoic acid derivatives with kynurenine-3-hydroxylase inhibiting activity
申请人:Pharmacia & Upjohn S.p.A.
公开号:US06323240B1
公开(公告)日:2001-11-27
4-phenyl-4-oxo-butanoic acid derivatives for use in the treatment of the human or animal body by therepy; particularly as kynurenine-3-hydroxylase inhibitors, in the prevention and/or treatment of a neurodegenerative disease wherein the inhibition of such an enyzme is needed. The present invention further comprises a selected class of the above mentioned 4-phenyl-4-oxo-butanoic acid derivatives, their pharmaceutically acceptable salts, a process for their preparation and pharmaceutical compositions containing them.
of a DNA‐encoded chemical library comprising 148 135 members, generated through the self‐assembly of two sub‐libraries, containing 265 and 559 members, respectively. The library was designed to contain building blocks potentially capable of forming covalent interactions with target proteins. Selections performed with JNK1, a kinase containing a conserved cysteineresidue close to the ATP binding site
我们描述了包含 148 135 个成员的 DNA 编码化学文库的构建,该文库是通过两个子文库(分别包含 265 和 559 个成员)的自组装生成的。该文库被设计为包含可能能够与靶蛋白形成共价相互作用的构建块。使用 JNK1(一种包含靠近 ATP 结合位点的保守半胱氨酸残基的激酶)进行的选择揭示了 2-苯氧基烟酸部分(结构单元 A82)和 4-(3,4-二氟苯基)-4-氧代的优先富集‐2-烯酸部分(结构单元B272)。当这两种化合物通过短 PEG 连接体连接时,产生的双齿结合物 ( A82-L-B272 ) 能够在大量摩尔过量的谷胱甘肽 (0.5 mm m ) 存在下共价修饰 JNK1,用于模拟细胞内还原状况。相比之下,各个构建模块的衍生物无法在相同的实验条件下共价修饰 JNK1。A82 -L-B272配体比相关激酶(BTK 和 GAK)具有选择性,后者在活性位点附近也含有可靶向的半胱氨酸残基。
Pyridazinone substituted benzenesulfonamides as potent carbonic anhydrase inhibitors
A series of sulfonamide derivatives (2a-l) incorporating substituted pyridazinone moieties were investigated for the inhibition of two human cytosolic carbonic anhydrase isoforms, hCA I and hCA II. All these compounds, together with the clinically used sulfonamide acetazolamide were investigated as inhibitors of the physiologically relevant isozymes I and II. These sulfonamides showed very strong inhibition against all these isoforms with K-I's in the range of 0.98-8.5 nM which makes such molecules possible to be used as leads for discovery of novel effective CA inhibitors targeting other isoforms with medicinal chemistry applications. (C) 2016 Elsevier Ltd. All rights reserved.
Synthesis of chiral γ-lactones via a RuPHOX-Ru catalyzed asymmetric hydrogenation of aroylacrylic acids
An asymmetrichydrogenation of aroylacrylic acidscatalyzed by RuPHOX-Ru catalyst has been developed, affording the corresponding chiral γ-lactones in high yields and with up to 93% ee. The methodology has the advantage of utilizing easily accessible substrates and has therefore expand the scope of the resulting chiral γ-lactones. Furthermore, high catalytic efficiency was achieved in that the reduction
Design and synthesis of pyridazinone-substituted benzenesulphonylurea derivatives as anti-hyperglycaemic agents and inhibitors of aldose reductase – an enzyme embroiled in diabetic complications
vitro ability to inhibitratlensaldosereductase. Ten compounds (III-VI, XII, XVI-XVIII, XXI and XXVII) showed ARI activity with IC50 ranging from 34 to 242 μM. Out of these, two compounds IV and V showed best ARI activity which is comparable with that of quercetin. As a result, two compounds (IV and V) possessing significant dual action (anti-hyperglycaemic and aldosereductase inhibition) were