DL5050, a Selective Agonist for the Human Constitutive Androstane Receptor
摘要:
The constitutive androstane receptor (CAR) is a xenobiotic sensor governing the transcription of genes involved in drug disposition, energy homeostasis, and cell proliferation. However, currently available human CAR (hCAR) agonists are nonselective, which commonly activate hCAR along with other nuclear receptors, especially the closely related human pregnane X receptor (hPXR). Using a well-known hCAR agonist CITCO as a template, we report our efforts in the discovery of a potent and highly selective hCAR agonist. Two of the new compounds of the series, 18 and 19 (DL5050), demonstrated excellent potency and selectivity for hCAR over hPXR. DL5050 preferentially induced the expression of CYP2B6 (target of hCAR) over CYP3A4 (target of hPXR) on both the mRNA and protein levels. The selective hCAR agonist DL5050 represents a valuable tool molecule to further define the biological functions of hCAR, and may also be used as a new lead in the discovery of hCAR agonists for various therapeutic applications.
metal-free oxidative deamination–cross-coupling of imidazoheterocycles with 2-aminobenzothiazoles in the presence of tert-butyl nitrite is reported for the first time. This simple protocol tolerates a wide range of functional groups to afford various benzothiazole–imidazoheterocycles in moderate to excellent yields, with the release of nitrogen and water as benign byproducts. A metal-free oxidative deam
[EN] COMPOUNDS FOR TREATING DUCHENNE MUSCULAR DYSTROPHY<br/>[FR] COMPOSÉS POUR TRAITER LA DYSTROPHIE MUSCULAIRE DE DUCHENNE
申请人:SUMMIT CORP PLC
公开号:WO2009013477A1
公开(公告)日:2009-01-29
Compounds of general formula (I), wherein X1, X2, X3, R1, R2, R3, Y and Z are as defined herein are useful for the treatment and prevention of Duchenne muscular dystrophy, Becker muscular dystrophy and cachexia.
Organophotoredox-Catalyzed C–H Alkylation of Imidazoheterocycles with Malonates: Total Synthesis of Zolpidem
作者:Narendra R. Chaubey、Anant R. Kapdi、Biswanath Maity
DOI:10.1055/s-0040-1706103
日期:2021.4
bromomalonates under mild conditions is reported, providing excellent yields of the products at room temperature. This is the first report involving malonates as coupling partners leading to the synthesis of a range of functionalized products including total synthesis of zolpidem, a sedative-hypnotic drug molecule.
在过去的几年中,由于在无金属和无过氧化物的环境中催化反应的可能性,有机光催化的C–H键功能化引起了很多关注。沿这些路线继续,报道了在温和的条件下用溴代丙二酸酯对咪唑并[1,2- a ]吡啶和相关杂环进行有机光氧化还原催化的CHH功能,可在室温下提供优异的收率。这是第一份涉及丙二酸酯作为偶联伙伴的报告,导致合成了一系列功能化产品,包括镇静催眠药物分子唑吡坦的全合成。
NOVEL ANTIPRION COMPOUNDS
申请人:The Regents of the University of California
公开号:US20140329863A1
公开(公告)日:2014-11-06
Described herein are novel compositions and methods of treatment addressing diseases such as neurodegenerative diseases, including prion diseases and Alzheimer's disease.
本文描述了一种新的组合物和治疗方法,用于治疗神经退行性疾病,包括朊病和阿尔茨海默病。
Sulfonyl hydrazide induced sulfenylation of imidazoheteroarenes: A ‘catalyst and solvent free’ protocol
作者:Sourav Mal、Manoranjan Jana
DOI:10.1080/00397911.2022.2069506
日期:2022.4.3
hassle free sustainable protocol for the sulfenylation of imidazoheterocycles has been developed. Sulfonyl hydrazides have been used as the generator of active thio carrier in situ in the form of “sulfono thionate” under neat condition to produce the desired sulfenylated imidazoheterocycles in good to excellent yields. The new methodology does not demand the requirement of any solvent or catalyst by simply