Abstract The paper presents the analysis of the structures of four novel sulfonamide-based bis -amidines, and four novel interesting intermediates leading to them, named bis -nitriles, in solid-state based on 13 C CP/MAS NMRspectroscopy and theoretical calculations of shielding constants at DFT level of theory. We have observed double 13 C resonances in solid-state spectra as compared with solution
摘要 本文基于 13 C CP/MAS NMR 光谱和理论计算,分析了四种新型磺酰胺基双脒和导致它们的四种新型中间体,即双腈,在固态下的结构。 DFT 理论水平的屏蔽常数。与溶液光谱相比,我们在固态光谱中观察到了双 13 C 共振。对实验化学位移和屏蔽计算的考虑使我们能够定义关于固态中最可能构象的基本几何细节。所有化合物在不对称单元中都有一个独立的分子,固态 NMR 信号分裂的主要原因是烷氧基片段(甲基和连接基)相对于苯环的不同取向。
Analogs of pentamidine as potential anti-Pneumocystis chemotherapeutics
作者:Dorota Maciejewska、Jerzy Żabinski、Pawel Kaźmierczak、Mateusz Rezler、Barbara Krassowska-Świebocka、Margaret S. Collins、Melanie T. Cushion
DOI:10.1016/j.ejmech.2011.12.010
日期:2012.2
activity (1.33 μM), bears a sulfobenzene group at a nitrogen in the aliphatic linker. The alkanediamide-linked bisbenzamidines showed a moderate inhibition of ATP. Generally, the inclusion of a heteroatom in the aliphatic linker and absence of methoxy groups at the benzene rings were associated with higher activities in this assay. Of note, most of the compounds had little to no cytotoxicity in mammalian
使用 2 个通用方案制备了一系列 20 种喷他脒类似物,这些方案在 ATP生物测定中评估了脂肪族接头中的杂原子、磺基苯和链烷二酰胺基团以及连接到苯环上的甲氧基取代基对真菌病原体卡氏肺囊虫的功效。在 72 小时的测定期间,除了 20 种双脒中的一种外,所有的都降低了卡氏假单胞菌的 ATP 含量。最高的活性与缺乏甲氧基和存在 O、N 和 S 杂原子有关。活动(IC 50) 化合物 1、5、6、10 的范围为 1.1 至 2.13 μM。具有相似活性的化合物 11 (1.33 μM),在脂肪族接头的氮原子上带有一个磺基苯基团。链烷二酰胺连接的双苯甲脒表现出对 ATP 的适度抑制。通常,在脂肪族接头中包含杂原子和在苯环上不存在甲氧基与该测定中更高的活性相关。值得注意的是,大多数化合物在哺乳动物细胞培养物中几乎没有细胞毒性。尽管不如其他喷他脒衍生物有效,但这些化合物有望减少哺乳动物宿主内的副作用。
Novel adenosine A3 receptor agonists
申请人:Baraldi Giovanni Pier
公开号:US20050250729A1
公开(公告)日:2005-11-10
The compounds of the following formula:
wherein Ar, R and R
1
have the meanings given in the specification. This series of sulfonamido derivatives with a conserved uronamide group at the 5′ position provide superior A3 receptor affinity as well as selectivity. These new adenosine agonists are sulfonamido derivatives N-substituted with aliphatic groups (cyclic or linear) or aromatic radicals.
The present invention provides compounds of the formula
wherein Ar, R and R
1
have a meaning as defined herein in the specification. Compounds of formula (I) are agonists of the A
3
adenosine receptor and, thus, may be employed for the treatment of conditions mediated by the A
3
adenosine receptor. Accordingly, the compounds of formula (I) may be employed for treatment of behavioral depression, cerebral ischemia, hypotension, chemically induced seizures, inflammatory diseases, asthma, and cancer diseases expressing the adenosine A
3
receptor.
申请人:King Pharmaceuticals Research and Development, Inc.
公开号:US07511133B2
公开(公告)日:2009-03-31
The compounds of the following formula:
wherein Ar, R and R1 have the meanings given in the specification. This series of sulfonamido derivatives with a conserved uronamide group at the 5′ position provide superior A3 receptor affinity as well as selectivity. These new adenosine agonists are sulfonamido derivatives N-substituted with aliphatic groups (cyclic or linear) or aromatic radicals.