Amidine derivatives with nitric oxide synthetase activities
申请人:Astra Aktiebolag
公开号:US05807885A1
公开(公告)日:1998-09-15
Amidine derivative compounds of formula I as defined in the Specification having nitric oxide synthetase inhibitory activity as well as processes for the preparation of and compositions containing said compounds are described.
tetra-ortho-chloroazobenzene aminoacid (CEBA) has enabled photoswitching of the antimicrobial activity of tyrocidine A analogues by using exclusively visiblelight, granting spatiotemporal control under benign conditions. Compounds bearing this photoswitchable aminoacid become active upon irradiation with red light, but quickly turn-off upon exposure to other visiblelight wavelengths. Critically, sunlight
新型四邻氯偶氮苯氨基酸 (CEBA)的引入,通过仅使用可见光实现了 tyrocidine A 类似物的抗菌活性的光开关,从而在良性条件下实现时空控制。带有这种光可切换氨基酸的化合物在红光照射下变得活跃,但在暴露于其他可见光波长时很快关闭。至关重要的是,阳光快速触发红光激活化合物异构化为其原始反式形式,为释放到环境中后的自失活提供了理想的平台。人们发现 Tyrocidine A 的线性类似物可对其抗菌活性提供最佳的光控制,从而在异构化时产生对鲍曼不动杆菌具有活性的化合物。对它们的N端和C端的探索提供了对其结构关键元素的深入了解,并使得获得具有优异菌株选择性和光控制性的新型抗菌剂成为可能。
Acylaminoalkyl-substituted benzenesulfonamide derivatives, their preparation, their use and pharmaceutical preparations comprising them
申请人:——
公开号:US20020123494A1
公开(公告)日:2002-09-05
One embodiment of the present invention relates to acylaminoalkyl-substituted benzenesulfonamide derivatives of the formula (I),
1
in which A, R(1), R(2), X, Y, and Z have the meanings indicated in the specification, and to pharmaceutically tolerable salts thereof. The compounds of the invention are valuable pharmaceutically active compounds that have, for example, an inhibitory action on ATP-sensitive potassium channels in the cardiac muscle and/or in the vagal cardiac nerve and are suitable, for example, for the treatment of disorders of the cardiovascular system such as coronary heart disease, arrhythmias, cardiac insufficiency, cardiomyopathies, decreased contractility of the heart or vagal dysfunction of the heart, or for the prevention of sudden cardiac death. The invention furthermore relates to processes for the preparation of the compounds of the formula (I) and pharmaceutically tolerable salts thereof, their use, and pharmaceutical preparations comprising them.
Heteroarylacryloylaminoalkyl-substituted benzenesulfonamide derivatives, their preparation, their use and pharmaceutical preparations comprising them
申请人:——
公开号:US20020123495A1
公开(公告)日:2002-09-05
One embodiment of the present invention relates to heteroarylacryloylaminoalkyl-substituted benzenesulfonamide derivatives of the formula (I),
1
in which R(1), R(2), R(3), R(4), Het, X, Y and Z have the meanings indicated in the specification, and to pharmaceutically tolerable salts thereof. The compounds of the invention are valuable pharmaceutically active compounds that have, for example, an inhibitory action on ATP-sensitive potassium channels in the cardiac muscle and/or in the vagal cardiac nerve and are suitable, for example, for the treatment of disorders of the cardiovascular system such as coronary heart disease, arrhythmias, cardiac insufficiency, cardiomyopathies, decreased contractility of the heart, or vagal dysfunction of the heart, or for the prevention of sudden cardiac death. The invention furthermore relates to processes for the preparation of the compounds of the formula (I) and pharmaceutically tolerable salts thereof, their use, and pharmaceutical preparations comprising them.
Protons as the Triggers to Regulate Hydrogen-Bonding Receptors
作者:Mohammad H. Al-Sayah、Neil R. Branda
DOI:10.1021/ol0170915
日期:2002.3.1
[reaction: see text] The protonation of alkylamines in twonovel receptors results in intramolecular host-guest associations between the resulting ammonium ions and crown ether macrocycles. These interactions result in conformational changes of the receptors and prevent them from acting as hydrogen bond complements for uracil and carboxylate guest species.