Pd(II)-Catalyzed Hydroxyl-Directed C−H Olefination Enabled by Monoprotected Amino Acid Ligands
作者:Yi Lu、Dong-Hui Wang、Keary M. Engle、Jin-Quan Yu
DOI:10.1021/ja101909t
日期:2010.4.28
A novel Pd(II)-catalyzed ortho-C-H olefination protocol has been developed using spatially remote, unprotected tertiary, secondary, and primaryalcohols as the directing groups. Mono-N-protected amino acid ligands were found to promote the reaction, and an array of olefin coupling partners could be used. When electron-deficient alkenes were used, the resulting olefinated intermediates underwent subsequent
There are disclosed compounds of formula (I) that modulate or inhibit the enzymatic activity of indoleamine 2,3-di-oxygenase (IDO), pharmaceutical compositions containing said compounds and methods of treating proliferative disorders, such as cancer, viral infections and/or inflammatory disorders utilizing the compounds of the invention.
The present invention provides a pentadienamide derivative represented by the formula (I):
(wherein R
1
represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group;
R
2
represents substituted or unsubstituted aryl, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted heteroalicyclic group, or the like;
R
3
represents a hydrogen atom or is combined together with R
4
and the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group;
R
4
represents substituted or unsubstituted aryl, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted heteroalicyclic group, or the like, or is combined together with R
3
and the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group; and
R
5
, R
6
, and R
7
may be the same or different, and each represents a hydrogen atom or methyl)
or a pharmaceutically acceptable salt thereof, and the like.
Kropf,H.; Bernert,C.-R., Justus Liebigs Annalen der Chemie, 1971, vol. 751, p. 109 - 120
作者:Kropf,H.、Bernert,C.-R.
DOI:——
日期:——
Use of 5-hydroxy-4H-benzo[1,4]oxazin-3-ones as β2-adrenoceptor agonists
作者:Christoph Hoenke、Thierry Bouyssou、Christofer S. Tautermann、Klaus Rudolf、Andreas Schnapp、Ingo Konetzki
DOI:10.1016/j.bmcl.2009.10.013
日期:2009.12
Novel beta(2)-agonists with a 5-hydroxy-4H-benzo[1,4]oxazin-3-one moiety as head group are described. Systematic chemical variations at the phenethylamine residue of these compounds lead to the discovery of compound 6m as potent, full agonist of the beta(2)-adrenoceptor with a high beta(1)/beta(2)-selectivity. Molecular modeling revealed an interaction between the carboxylic acid group of 6m and a lysine residue (K305) of the beta(2)-receptor as putative explanation for the high observed selectivity. Further, compound 6m displayed in a guinea pig in vivo model a complete reversal of acetylcholine induced bronchoconstriction which lasted over the complete study time of 5 h. (C) 2009 Elsevier Ltd. All rights reserved.