N-donor-stabilized Pd(II) species supported by sulphonamide-azo ligands: Ligand architecture, solvent co-ligands, C–C coupling
作者:Hammed Olawale Oloyede、Joseph Anthony Orighomisan Woods、Helmar Görls、Winfried Plass、Abiodun Omokehinde Eseola
DOI:10.1016/j.molstruc.2019.127030
日期:2020.1
were prepared and examined as organic ligands for stabilizing palladium active centers; R = methyl, tolyl or triiso-propylphenyl. Palladiumcomplexes, which were obtained in varying coordination environments as well as with varying complementary co-ligands (water, acetonitrile or pyridine), have been subjected to Suzuki and Heck coupling experiments in order to study molecular level ligand effects on
backbone of the ligands is greatly reduced by fixing three arms of the neopentane scaffolding to the metal center. After deprotonation, reaction with electrophiles will produce the corresponding ether derivatives ROCH2C(CH2PPh2)(CH2Z)2 (3). Mesylation of 2 leads to MeSO2OCH2C(CH2PPh2)3·Mo(CO)3 (4), which reacts with alkoxides to produce 3 in a sequence of reversed polarity. Ligands 5 [ROCH2C(CH2PPh2)3] are
新戊烷衍生的一般类型 HOCH2C(CH2PPh2)(CH2Y)(CH2Z) (1; Y, Z = PPh2, SR) 的三脚架配体在其羟基上具有抗醚形成的能力。已发现两种途径,允许将 1 转化为醚官能化三脚架配体 ROCH2C(CH2PPh2)(CH2Y)(CH2Z)(Y = Z = PPh2: 5,Y = Z = SR: 8)。这些策略之一依赖于 1·Mo(CO)3 (2) 中 1 的 η3 配位。通过这种方式,通过将新戊烷支架的三个臂固定到金属中心,可以有效地保护供体基团,并大大减少了配体骨架上 CH2OH 基团的空间阻碍。去质子化后,与亲电试剂反应会产生相应的醚衍生物 ROCH2C(CH2PPh2)(CH2Z)2 (3)。2 的甲磺酰化导致 MeSO2OCH2C(CH2PPh2)3·Mo(CO)3 (4),与醇盐反应生成极性相反的 3。配体 5 [ROCH2C(CH2PPh2)3]
Novel aminodicarboxylic acid derivatives having pharmaceutical properties
申请人:Alonso-Alija Cristina
公开号:US20060094769A1
公开(公告)日:2006-05-04
The invention relates to compounds of formulae (II), (IV), and (VI) as shown below,
wherein the several variable groups are as defined in the specification and claims. Processes for making these materials, and methods for using them in the synthesis of compounds for treatment of cardiovascular disorders and fibrotic disorders are also disclosed.
Low molecular weight dendritic compounds as pharmaceutical agents
申请人:Warner-Lambert Company
公开号:US06225352B1
公开(公告)日:2001-05-01
This invention is for low molecular weight dendritic polymers (dendroids) of Formula I
are useful as agents in the treatment of cancer, Alzheimers disease, thrombosis, inflammatory diseases, and bacterial resistance.
ANTI-VIRAL COMPOUNDS, COMPOSITIONS, AND METHODS OF USE
申请人:Leivers Martin Robert
公开号:US20090226398A1
公开(公告)日:2009-09-10
Disclosed are compounds and compositions of Formula (I), pharmaceutically acceptable salts and solvates thereof, and their preparation and uses for treating viral infections mediated at least in part by a virus in the Flaviviridae family of viruses.