Crystal and molecular structure of the levorotatory (1R,2S)-ephedrinium (S)-t-butylsulfinylacetate: a definitive proof of the absolute configuration of enantiomeric t-butyl methyl sulfoxides
作者:Józef Drabowicz、Bogdan Dudziński、Marian Mikołajczyk、Michał W. Wieczorek、Wiesław R. Majzner
DOI:10.1016/s0957-4166(98)00110-4
日期:1998.4
The levorotatory enantiomer of t-butylsulfinylacetic acid 3 was obtained in the reaction of the α-carbanion of (+)-t-butyl methyl sulfoxide 1 with carbon dioxide. The same enantiopure form of the acid 3 was isolated from its diastereomerically pure levorotatory salt 5 with (−)-(1R,2S)-ephedrine. The structure of this salt was determined by X-ray analysis and the absolute configuration (S) at sulfur
Reversible Transformation between Cubane and Stairstep Cu<sub>4</sub>I<sub>4</sub>Clusters Using Heat or Solvent Vapor
作者:Seonghwa Cho、Youngeun Jeon、Sangjin Lee、Jineun Kim、Tae Ho Kim
DOI:10.1002/chem.201405800
日期:2015.1.19
The controlled self‐assembly of CuI and an asymmetric ligand with mixed N/S donors, 2‐(tert‐butylthio)‐N‐(pyridin‐3‐yl)acetamide (L), afforded three CuI coordination polymers (CPs), [Cu4I4L2(MeCN)2]n (1), [Cu4I4L2]n (2), and [Cu4I4L2]⋅MeOH}n (3). X‐ray analyses showed that CPs 1–3 are supramolecularisomers with 1, 2, and 3D structures, respectively. CP 1 adopts a stairstep Cu4I4 cluster, whereas
CuI和具有不对称配体的N / S混合供体,2-(叔丁硫基)-N-(吡啶-3-基)乙酰胺(L)的受控自组装,提供了三种Cu I配位聚合物(CP), [Cu 4 I 4 L 2(MeCN)2 ] n(1),[Cu 4 I 4 L 2 ] n(2)和[Cu 4 I 4 L 2 ] · MeOH} n(3)。X射线分析表明,CP 1– 3是分别具有1、2和3D结构的超分子异构体。CP 1采用阶梯状Cu 4 I 4簇,而CP 2和3由类似古巴的Cu 4 I 4簇组成。从1到2和3的晶体到晶体的转变表明,使用热或溶剂(乙腈或甲醇)蒸气在不同的Cu 4 I 4簇之间具有可逆的转变。CP 2可逆地转换为3通过添加甲醇和加热。因此,超分子异构体间的变换1,2,和3是完全可逆的。
SMALL MOLECULE INHIBITORS OF MCL-1 AND THE USES OF THEREOF
申请人:WAYNE STATE UNIVERSITY
公开号:US20140235702A1
公开(公告)日:2014-08-21
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having sulfonamido-1-hydroxynaphthalene structure which function as inhibitors of Mcl-1 protein, and their use as therapeutics for the treatment of cancer and other diseases.
human immunodeficiency virus type 1 (HIV-1) forms a conical structure by assembling oligomers of capsid (CA) proteins and is a virion shell that encapsulates viral RNA. The inhibition of the CA function could be an appropriate target for suppression of HIV-1replication because the CA proteins are highly conserved among many strains of HIV-1, and the drug targeting CA, lenacapavir, has been clinically
人类免疫缺陷病毒1型(HIV-1)的衣壳通过衣壳(CA)蛋白寡聚体的组装形成圆锥形结构,是封装病毒RNA的病毒体外壳。 CA功能的抑制可能是抑制HIV-1复制的合适靶点,因为CA蛋白在许多HIV-1毒株中高度保守,而针对CA的药物lenacapavi已由吉利德科学公司临床开发两个 CA 分子之间通过CA 序列中的 Trp184 和 Met185 残基进行的界面疏水相互作用对于 CA 多聚体的构象稳定是必不可少的。我们的持续研究发现,通过计算机筛选设计的两种具有不同支架的小分子MKN-1和MKN-3作为Trp184和Met185的二肽模拟物具有显着的抗HIV-1活性。在本研究中,MKN-1衍生物已被设计和合成。他们的结构-活性关系研究发现一些化合物具有有效的抗艾滋病毒活性。目前的结果应该有助于设计具有抗 HIV 活性的新型 CA 靶向分子。 全尺寸图像