Studies Leading to Potent, Dual Inhibitors of Bcl-2 and Bcl-xL
摘要:
Overexpression of the antiapototic proteins Bcl-2 and Bcl-xL provides a common mechanism through which cancer cells gain a survival advantage and become resistant to conventional chemotherapy. Inhibition of these prosurvival proteins is an attractive strategy for cancer therapy. We recently described the discovery of a selective Bcl-xL antagonist that potentiates the antitumor activity of chemotherapy and radiation. Here we describe the use of structure-guided design to exploit a deep hydrophobic binding pocket on the surface of these proteins to develop the first dual, subnanomolar inhibitors of Bcl-xL and Bcl-2. This study culminated in the identification of 2, which exhibited EC50 values of 8 nM and 30 nM in Bcl-2 and Bcl-xL dependent cells, respectively. Compound 2 demonstrated single agent efficacy against human follicular lymphoma cell lines that overexpress Bcl-2, and efficacy in a murine xenograft model of lymphoma when given both as a single agent and in combination with etoposide.
[EN] SULFUR COMPOUNDS AS INHIBITORS OF HEPATITIS C VIRUS NS3 SERINE PROTEASE<br/>[FR] COMPOSES SOUFRES EN TANT QU'INHIBITEURS DE LA PROTEASE SERINE NS3 DU VIRUS DE L'HEPATITE C
申请人:SCHERING CORP
公开号:WO2005087731A1
公开(公告)日:2005-09-22
The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
N-Benzoyl arylsulfonamides having the formula
1
are BCL-Xl inhibitors and are useful for promoting apoptosis. Also disclosed are BCL-Xl inhibiting compositions and methods of promoting apoptosis in a mammal.
N-Benzoyl arylsulfonamides having the formula
1
Are BCL-X1 inhibitors and are useful for promoting apoptosis. Also disclosed are BCL-X1 inhibiting compositions and methods of promoting apoptosis in a mammal.
Disclosed are compounds of the general formula
1
which are oxamide derivatives and inhibitors of the enzyme inosine monophosphate dehydrogenase (IMPDH).
揭示了一般式1的化合物,这些化合物是羟酰胺衍生物,是肌醇单磷酸脱氢酶(IMPDH)的抑制剂。
Use of 2-oxazolidinones as latent aziridine equivalents. III. Preparation of N-substituted piperazines
作者:Graham S. Poindexter、Marc A. Bruce、Karen L. LeBoulluec、Ivo Monkovic
DOI:10.1016/0040-4039(94)85306-1
日期:1994.10
A number of N-aryl and N-alkylsubstituted piperazines 1 were prepared from variously substituted 2-oxazolidinone derivatives 3. The method involved treatment of 3 with HBr in glacial acetic acid followed by heating the resulting ring-opened salts 5 in alcoholic solvent. The piperazines 1a–1q were isolated by crystallization in yields ranging from 23–91%.