Optimization of 5-substituted thiazolyl ureas and 6-substituted imidazopyridines as potential HIV-1 latency reversing agents
摘要:
A persistent latent reservoir of virus in CD4(+) T cells is a major barrier to cure HIV. Activating viral transcription in latently infected cells using small molecules is one strategy being explored to eliminate latency. We previously described the use of a FlpIn.FM HEK293 cellular assay to identify and then optimize the 2-acylaminothiazole class to exhibit modest activation of HIV gene expression. Here, we implement two strategies to further improve the activation of viral gene expression and physicochemical properties of this class. Firstly, we explored rigidification of the central oxy-carbon linker with a variety of saturated heterocycles, and secondly, investigated bioisosteric replacement of the 2-acylaminothiazole moiety. The optimization process afforded lead compounds (74 and 91) from the 2-piperazinyl thiazolyl urea and the imidazopyridine class. The lead compounds from each class demonstrate potent activation of HIV gene expression in the FlpIn.FM HEK293 cellular assay (both with LTR EC(50)s of 80 nM) and in the Jurkat Latency 10.6 cell model (LTR EC50 220 and 320 nM respectively), but consequently activate gene expression non-specifically in the FlpIn.FM HEK293 cellular assay (CMV EC50 70 and 270 nM respectively) manifesting in cellular cytotoxicity. The lead compounds have potential for further development as novel latency reversing agents. (C) 2020 Elsevier Masson SAS. All rights reserved.
Optimization of 5-substituted thiazolyl ureas and 6-substituted imidazopyridines as potential HIV-1 latency reversing agents
摘要:
A persistent latent reservoir of virus in CD4(+) T cells is a major barrier to cure HIV. Activating viral transcription in latently infected cells using small molecules is one strategy being explored to eliminate latency. We previously described the use of a FlpIn.FM HEK293 cellular assay to identify and then optimize the 2-acylaminothiazole class to exhibit modest activation of HIV gene expression. Here, we implement two strategies to further improve the activation of viral gene expression and physicochemical properties of this class. Firstly, we explored rigidification of the central oxy-carbon linker with a variety of saturated heterocycles, and secondly, investigated bioisosteric replacement of the 2-acylaminothiazole moiety. The optimization process afforded lead compounds (74 and 91) from the 2-piperazinyl thiazolyl urea and the imidazopyridine class. The lead compounds from each class demonstrate potent activation of HIV gene expression in the FlpIn.FM HEK293 cellular assay (both with LTR EC(50)s of 80 nM) and in the Jurkat Latency 10.6 cell model (LTR EC50 220 and 320 nM respectively), but consequently activate gene expression non-specifically in the FlpIn.FM HEK293 cellular assay (CMV EC50 70 and 270 nM respectively) manifesting in cellular cytotoxicity. The lead compounds have potential for further development as novel latency reversing agents. (C) 2020 Elsevier Masson SAS. All rights reserved.
The invention provides compounds of formula (I): as modulators of chemokine and H1 receptor activity. The compounds are especially useful in the treatment of asthma and rhinitis.
Substituted bipiperidine intermediates and derivatives thereof
申请人:AstraZeneca AB
公开号:EP1493743A1
公开(公告)日:2005-01-05
A compound of formula (Xllla):
wherein: L2 is hydrogen, tert-butoxycarbonyl or benzyl; t is 0 or 1; m and p are, independently, 0, 1 or 2; X is CH2, C(O), O, S, S(O), S(O)2 or NR37; provided that when m and p are both 1 then X is not CH2; and R1 has specified values.
一种式(Xllla)化合物:
其中L2 是氢、叔丁氧基羰基或苄基;t 是 0 或 1;m 和 p 分别是 0、1 或 2;X 是 CH2、C(O)、O、S、S(O)、S(O)2 或 NR37;但当 m 和 p 均为 1 时,X 不是 CH2;R1 具有指定值。
INTERMEDIATES FOR THE PREPARATION OF PIPERIDINE DERIVATIVES USEFUL AS MODULATORS OF CHEMOKINE RECEPTOR ACTIVITY
申请人:AstraZeneca AB
公开号:EP1604982A1
公开(公告)日:2005-12-14
The invention provides a compound of formula (X) or (XVIII):
wherein: R1 is optionally substituted aryl or optionally substituted heterocyclyl; and R2 is hydrogen or C1-6 alkyl; said compounds can be used for preparing modulators of chemokine (especially CCR3) activity.