- Modulation of the Cs2CO3-promoted catalytic amination by a crown ether.
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The catalytic addition of 18-Crown-6 in some Cs2CO3-promoted amination of triflates and bromides was beneficial to improve sluggish reaction with suppression of the unwanted side products. The protocol was useful for the preparation of chlorinated aryl piperazines from phenol derivatives.
- Torisawa,Nishi,Minamikawa
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Read Online
- MONOACYLGLYCEROL LIPASE INHIBITORS
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Provided are compounds of formula (I), or a pharmaceutically acceptable salt or solvate thereof: Also provided are compositions comprising compounds of formula (I). The compounds and compositions are also provided for use as medicaments, for example as medicaments useful in the treatment of a condition modulated by monoacylglycerol lipase (MAGL). Also provided are the use of compounds and compositions for the inhibition of monoacylglycerol lipase (MAGL).
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Paragraph 0109-0110; 0141; 0151-0152; 0206-0207
(2021/09/09)
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- Optimization of 5-substituted thiazolyl ureas and 6-substituted imidazopyridines as potential HIV-1 latency reversing agents
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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 EC50s 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.
- Blackmore, Timothy R.,Jacobson, Jonathan,Jarman, Kate E.,Lewin, Sharon R.,Nguyen, William,Purcell, Damian F.,Sabroux, Helene Jousset,Sleebs, Brad E.
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- Discovery of imidazole carboxamides as potent and selective CCK1R agonists
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High-throughput screening revealed diaryl pyrazole 3 as a selective albeit modest cholecystokinin 1 receptor (CCK1R) agonist. SAR studies led to the discovery and optimization of a novel class of 1,2-diaryl imidazole carboxamides. Compound 44, which was profiled extensively, showed good in vivo mouse gallbladder emptying (mGBE) and lean mouse overnight food intake (ONFI) reduction activities.
- Zhu, Cheng,Hansen, Alexa R.,Bateman, Thomas,Chen, Zhesheng,Holt, Tom G.,Hubert, James A.,Karanam, Bindhu V.,Lee, Susan J.,Pan, Jie,Qian, Su,Reddy, Vijay B.G.,Reitman, Marc L.,Strack, Alison M.,Tong, Vincent,Weingarth, Drew T.,Wolff, Michael S.,MacNeil, Doug J.,Weber, Ann E.,Duffy, Joseph L.,Edmondson, Scott D.
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scheme or table
p. 4393 - 4396
(2009/04/06)
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