A2B Adenosine Receptor Antagonists with Picomolar Potency
摘要:
The A(2B) adenosine receptor (A(2B)AR) was proposed as a novel target for the (immuno)therapy of cancer since A(2B)AR blockade results in antiproliferative, antiangiogenic, antimetastatic, and immunostimulatory effects. In this study, we explored the structure-activity relationships of xanthin-8-yl-benzenesulfonamides mainly by introducing a variety of linkers and substituents attached to the sulfonamide residue. A new, convergent strategy was established, which facilitated the synthesis of the target compounds. Many of the new compounds exhibited subnanomolar affinity for the A(2B)AR combined with high selectivity. Functional groups were introduced, which will allow the attachment of dyes and other reporter groups. 8-(4((4-(4-Bromophenyl)piperazin-1-yl)sulfonyl)phenyl)-1-propylxanthine (34, PSB-1901) was the most potent A(2B)-antagonist (K-i 0.0835 nM, K-B 0.0598 nM, human A(2B)AR) with >10 000-fold selectivity versus all other AR subtypes. It was similarly potent and selective at the mouse A(2B)AR, making it a promising tool for preclinical studies. Computational studies predicted halogen bonding to contribute to the outstanding potency of 34.
HIV protease inhibitors having polyether substituents
申请人:MERCK & CO. INC.
公开号:EP0487270A2
公开(公告)日:1992-05-27
Polyether derivatives of the form,
A-G-B-B-J
wherein G is a dipeptide isostere substituted with a polyether, B an amino acid or analog thereof, and J a small terminal group are described. These compounds are useful in the inhibition of DIV protease, the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
Polyviologen Dendrimers as Hosts and Charge-Storing Devices
作者:Célia M. Ronconi、J. Fraser Stoddart、Vincenzo Balzani、Massimo Baroncini、Paola Ceroni、Carlo Giansante、Margherita Venturi
DOI:10.1002/chem.200800773
日期:2008.9.19
showed that each viologen unit in the dendritic structures becomes associated with an eosin dianion. Electrochemical (in MeCN) and photosensitization (in CH(2)Cl(2)) experiments revealed that only a fraction of the viologen units present in the dendritic structures can be reduced. This fraction corresponds to the number of viologen units present in the outershells of the dendrimers. The reasons for incomplete
HETEROARYL SUBSTITUTED PYRAZOLE DERIVATIVES USEFUL FOR TREATING HYPER-PROLIFERATIVE DISORDERS AND DISEASES ASSOCIATED WITH ANGIOGENESIS
申请人:Boyer Stephen
公开号:US20100249085A1
公开(公告)日:2010-09-30
This invention relates to novel heteroaryl substituted pyrazole compounds, pharmaceutical compositions containing such compounds and the use of those compounds or compositions for treating hyper-proliferative and/or angiogenesis disorders, as a sole agent or in combination with other active ingredients or therapeutic measures.
Heteroaryl substituted pyrazole derivatives useful for treating hyper-proliferative disorders and diseases associated with angiogenesis
申请人:Boyer Stephen
公开号:US08796253B2
公开(公告)日:2014-08-05
This invention relates to novel heteroaryl substituted pyrazole compounds, pharmaceutical compositions containing such compounds and the use of those compounds or compositions for treating hyper-proliferative and/or angiogenesis disorders, as a sole agent or in combination with other active ingredients or therapeutic measures.