高自旋状态在 -40 至 60 °C 的温度范围内占主导地位。CH 3 CN 中配合物la 和2a 的循环伏安法显示Ni II /Ni I 氧化还原对的可逆波。2a (E 1/2 = -1.20V vs. Ag/AgNO 3 )的氧化还原电位比la (E 1/2 = -1.48V)更正。与这些复合物相比,3a 显示出不可逆的氧化还原对,其峰间距为 460 mV。该结果表明镍配合物 3a 的配位几何形状在六配位 Ni II 和四配位 Ni I 状态之间发生剧烈变化。Ag/AgNO 3 ) 比 la (E 1/2 = -1.48V) 更正。与这些复合物相比,3a 显示出不可逆的氧化还原对,其峰间距为 460 mV。该结果表明镍配合物 3a 的配位几何形状在六配位 Ni II 和四配位 Ni I 状态之间发生剧烈变化。Ag/AgNO 3 ) 比la (E 1/2 = -1.48V) 更正。与这些复合物相比,3a
[EN] 4- (4-CYANOPHENYL) -1- (3-TRIFLUOROMETHYLPHENYL) -3,4, 6, 7-TETRAHYDRO-1H-PYRROLO [3, 4- D] PYRIMIDINE-2, 5-DIONE DERIVATIVES AND THEIR USE AS HUMAN NEUTROPHIL ELASTASE INHIBITORS<br/>[FR] DÉRIVÉS DE 4-(4-CYANOPHÉNYL)-1-(3-TRIFLUOROMÉTHYLPHÉNYL)-3,4,6,7-TÉTRAHYDRO-1H-PYRROLO[3,4-D]PYRIMIDINE-2,5-DIONE ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE L'ÉLASTASE DES NEUTROPHILES HUMAINS
申请人:ARGENTA DISCOVERY LTD
公开号:WO2009060158A1
公开(公告)日:2009-05-14
Thirty six specific compounds having human neutrophil elastase inhibitory activity are disclosed, one of which has the structural formula (1). The compounds are useful inter alia for the treatment of inflammatory respiratory disease, and may be administered by inhalation.
Diamine and Triamine Analogs and Derivatives as Inhibitors of Deoxyhypusine Synthase: Synthesis and Biological Activity
作者:Young Bok Lee、Myung Hee Park、J. E. Folk
DOI:10.1021/jm00016a008
日期:1995.8
of this enzyme. The findings indicate that the long chain triamines 2a and 2b and their guanyl derivatives 3a, 3b, 4a, and 4b exert inhibition by binding to enzyme through only a portion of their structures at any one time. The inhibition exhibited by N-ethyl-1,7-diaminoheptane 20 and its guanyl derivative 21 supports this notion and is evidence for participation of the secondary amino group in binding
Metal complexes with macrocyclic ligands. Part XIX. Synthesis and Cu2+-complexes of a series of 12-, 14- and 16-memberedcis- andtrans-N2S2-macrocycles
作者:Liselotte Siegfried、Thomas A. Kaden
DOI:10.1002/hlca.19840670105
日期:1984.2.1
N2S2-macrocycles (9–11 and 19–21) with cis and trans-arrangement of the heteroatoms have been synthesized by high-dilution cyclization and subsequent reduction of the amides with B2H6. With these ligands the corresponding Cu2+-complexes were prepared and their UV/VIS spectra, their electrochemistry and their EPR properties have been studied. Generally three absorption bands at 270–320 nm, 330–370 nm
通过高稀释环化反应和随后的还原反应,合成了一系列12、14和16元N 2 S 2-大环(9-11和19-21),具有杂原子的顺式和反式排列。酰胺与B 2 H 6。用这些配体制备了相应的Cu 2+配合物,并研究了它们的UV / VIS光谱,电化学和EPR性能。通常在水溶液中可以观察到在270–320 nm,330–370 nm和530–620 nm处的三个吸收带,这些吸收带已分配给NCu 2+和SCu 2+电荷转移带和到dd *跃迁。在所有情况下,CH 3 CN中的循环伏安法均显示在针对SHE的电位为10-480 mV时可逆或准可逆Cu 2+ / Cu +-转变。从EPR光谱获得的g ′和A ′值表明,14元顺式-N 2 S 2-大环的Cu 2 + -配合物的几何形状比其他配合物的畸变少。
Effects of Heteroatom Substitution on the Structures, Physicochemical Properties, and Redox Behavior of Nickel(II) Complexes with Pyridine-Containing Macrocyclic Ligands
Nickel(II) complexes supported by 14-membered pyridine-containing macrocyclic ligands L E (E = NH, S, and 0), represented as [Ni II (LNH)](ClO 4 ) 2 (1a), [Ni II (L S )](ClO 4 ) 2 (2a), [Ni II (L S )](ClO 4 )(BPh4) (2b), [Ni II (L o )(CH3CN) 2 ]-(ClO 4 ) 2 (3a), and [Ni"(L°)(CH3CN)2](ClO 4 )(BPh4) (3b), have been synthesized. X-ray crystal structures of complexes la and 2b have square-planar structures
高自旋状态在 -40 至 60 °C 的温度范围内占主导地位。CH 3 CN 中配合物la 和2a 的循环伏安法显示Ni II /Ni I 氧化还原对的可逆波。2a (E 1/2 = -1.20V vs. Ag/AgNO 3 )的氧化还原电位比la (E 1/2 = -1.48V)更正。与这些复合物相比,3a 显示出不可逆的氧化还原对,其峰间距为 460 mV。该结果表明镍配合物 3a 的配位几何形状在六配位 Ni II 和四配位 Ni I 状态之间发生剧烈变化。Ag/AgNO 3 ) 比 la (E 1/2 = -1.48V) 更正。与这些复合物相比,3a 显示出不可逆的氧化还原对,其峰间距为 460 mV。该结果表明镍配合物 3a 的配位几何形状在六配位 Ni II 和四配位 Ni I 状态之间发生剧烈变化。Ag/AgNO 3 ) 比la (E 1/2 = -1.48V) 更正。与这些复合物相比,3a
COMPOSITIONS AND METHODS FOR POLYMER COMPOSITES
申请人:Chan Pong Kwok
公开号:US20080021175A1
公开(公告)日:2008-01-24
This invention relates to organic salt compositions useful in the preparation of organoclay compositions, polymer-organoclay composite compositions, and methods for the preparation of polymer nanocomposites. In one embodiment, the present invention provides a pyridinium salt having structure XV
wherein Ar
6
, Ar
7
, and Ar
8
are independently C
2
-C
50
aromatic radicals; “b” is a number from 0 to 2; “d” is a number from 0 to 4; R
3
and R
4
are independently at each occurrence a halogen atom, a C
1
-C
20
aliphatic radical, a C
5
-C
20
cycloaliphatic radical, or a C
2
-C
20
aromatic radical; Z is a bond, a divalent C
1
-C
20
aliphatic radical, a divalent C
5
-C
20
cycloaliphatic radical, a divalent C
2
-C
20
aromatic radical, an oxygen linking group, a sulfur linking group, a SO
2
linking group, or a Se linking group; Ar
9
is a C
10
-C
200
aromatic radical, or a polymer chain comprising at least one aromatic group; and X
−
is a charge balancing counterion.