[EN] MODULATORS OF CELLULAR ADHESION<br/>[FR] MODULATEURS DE L'ADHESION CELLULAIRE
申请人:SUNESIS PHARMACEUTICALS INC
公开号:WO2005044817A1
公开(公告)日:2005-05-19
The present invention provides compounds having formula (I): and pharmaceutically acceptable derivatives thereof, wherein R1-R4, n, p, A, B, D, E, L and AR1 are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof for the treatment of disorders mediated by the CD11/CD18 family of cellular adhesion molecules (e.g., LFA-1).
Salen copper(II) complex heterogenized on mesoporous MCM-41 as nano-reactor catalyst for the selective oxidation of sulfides using urea hydrogen peroxide (UHP)
prepared grafting Cu-salen-MCM-41 over a mesoporous surface was found to be an efficient and selective catalyst for the oxidation of different sulfides into sulfoxides with urea hydrogenperoxide (UHP) giving excellent yields at room temperature. The results showed that Cu-salen-MCM-41 is an effective catalyst for the oxidation of sulfides and can be repeatedly used and regenerated with no significant decrease
A highly chemoselective, efficient and nano-Pd catalyzed protocol for the rapid construction of sulfoxides and sulfones via the oxidation of symmetrical and unsymmetrical sulfides using H2O2 as an oxidant has been developed, respectively. The ready availability of starting materials, easy recovery and reutilization of the catalyst, wide substrate scope, and high yields make this protocol an attractive
已经开发出一种高度化学选择性,高效和纳米钯催化的方案,分别通过使用H 2 O 2作为氧化剂,通过对称和不对称硫化物的氧化来快速构建亚砜和砜。起始材料的可用性,催化剂的易于回收和再利用,广泛的底物范围以及高收率使得该方案成为有吸引力的替代方案。该方法还涉及无金属和微波促进的对称的二芳基硫醚的合成,以及FeCl 3介导的芳族重氮四氟硼酸盐与Na 2 S·9H 2的反应制备对称的二芳基二硫化物。O作为硫源。另外,经由K 2 CO 3介导的四氟硼酸壬二唑鎓与对称的二硫化物的反应产生了不对称的硫化物。
Biotransformation of organic sulfides. Part 12. Conversion of heterocyclic sulfides to chiral sulfoxides by <i>Helminthosporium</i> sp. NRRL 4671 and <i>Mortierella isabellina</i> ATCC 42613
作者:Herbert L. Holland、Carl D. Turner、Peter R. Andreana、Doan Nguyen
DOI:10.1139/cjc-77-4-463
日期:——
The enantioselective oxidation of a series of heterocyclic prochiral sulfides to chiral sulfoxides has been examined using the fungal biocatalysts Helminthosporium species NRRL 4671 and Mortierella isabellina ATCC 42613. Methylthiofuranyl and -thiophenyl substrates gave (S)-configuration products in low to moderate enantiomeric purity on biotransformation with H. species, but pyridyl sulfides with
已经使用真菌生物催化剂 Helminthosporium 物种 NRRL 4671 和 Mortierella isabellina ATCC 42613 对一系列杂环前手性硫化物对映选择性氧化为手性亚砜进行了研究。甲基硫代呋喃基和-噻吩底物在低至中等纯度的生物反式转化中产生 (S)-构型产物与 H. 物种,但氮原子位于距硫中心 8-10 A 最佳距离的吡啶基硫化物产生高对映体纯度的 (S) 亚砜。M. isabellina 对适当取代的苯并噻烷底物的生物转化也产生了高对映体纯度的产物,但在硫处具有 (R) 构型。底物的可接受性以及 H. 物种和 M. 对硫氧化的构型。
A peroxotungstate-ionic liquid brush assembly: an efficient and reusable catalyst for selectively oxidizing sulfides with aqueous H2O2 solution in neat water
An efficient and reusable heterogeneous catalytic assembly of peroxotungstate held in a ionic liquid (IL) brush was synthesized and an environmentally-friendly procedure was developed for selective oxidation of sulfides at room temperature using 30 wt.% hydrogen peroxide as the terminal oxidant and water as a sole solvent. No organic co-solvent or other additive was needed. A 1.5-2.0 mol% (based on