在本研究中,我们着手基于吡唑并[3,4- d ]嘧啶支架合理优化PKD抑制剂。本研究的先导化合物是 1-NM-PP1,我们和其他人之前发现它可以抑制 PKD。在我们的筛选中,我们鉴定出一种化合物 (3-IN-PP1),其效力比 1-NM-PP1 提高 10 倍,为对吡唑并显示敏感性的激酶的特定蛋白激酶抑制剂开辟了新的可能性[3,4- d ]嘧啶衍生的化合物。有趣的是,观察到的 SAR 与通常观察到的结合模式并不完全一致,其中吡唑并[3,4- d ]嘧啶化合物以与 PKD 天然配体 ATP 类似的方式结合。因此,我们建议采用另一种结合模式,其中化合物翻转 180 度。这种基于吡唑并[3,4- d ]嘧啶的化合物的可能的替代结合模式可以为用于对吡唑并[3,4- d ]嘧啶敏感的激酶的新型特异性蛋白激酶抑制剂铺平道路。
Optimization of Benzoxazole-Based Inhibitors of <i>Cryptosporidium parvum</i> Inosine 5′-Monophosphate Dehydrogenase
作者:Suresh Kumar Gorla、Mandapati Kavitha、Minjia Zhang、James En Wai Chin、Xiaoping Liu、Boris Striepen、Magdalena Makowska-Grzyska、Youngchang Kim、Andrzej Joachimiak、Lizbeth Hedstrom、Gregory D. Cuny
DOI:10.1021/jm400241j
日期:2013.5.23
Cryptosporidium parvum is an enteric protozoan parasite that has emerged as a major cause of diarrhea, malnutrition, and gastroenteritis and poses a potential bioterrorism threat. C. parvum synthesizes guanine nucleotides from host adenosine in a streamlined pathway that relies on inosine5′-monophosphatedehydrogenase (IMPDH). We have previously identified several parasite-selective C. parvum IMPDH
Heteroatom effect on potential energy topology. A novel reaction mechanism of stereospecific Staudinger synthesis
作者:Péter Ábrányi-Balogh、Zoltán Mucsi、Imre Gyula Csizmadia、András Dancsó、György Keglevich、Mátyás Milen
DOI:10.1016/j.tet.2014.10.059
日期:2014.12
The Staudingersynthesis of various β-carbolines and thienopyridines with acetyl chloride derivatives led to novel β-lactam-type fused heterocyclic compounds. The reaction was stereospecific, giving exclusively the cis cycloadducts as racemates. The enthalpy profile and the driving force for the cis-selectivity of this cycloaddition was studied by high level quantum chemical calculations and was assigned
Recyclable Heterogeneous Palladium-Catalyzed Cyclocarbonylation of 2-Iodoanilines with Acyl Chlorides in the Biomass-Derived Solvent 2-Methyltetrahydrofuran
作者:Wenyan Hao、Zhaotao Xu、Zebiao Zhou、Mingzhong Cai
DOI:10.1021/acs.joc.0c00887
日期:2020.7.2
A highly efficient, green palladium-catalyzed cyclocarbonylation of 2-iodoanilines with acyl chlorides has been developed that proceeds smoothly in a biomass-derived solvent 2-methyltetrahydrofuran with N,N-diisopropylethylamine as base at 100 °C under 20 bar of carbon monoxide using an 2-aminoethylamino-modified MCM-41-anchored palladium acetate complex [2N-MCM-41-Pd(OAc)2] as a heterogeneous catalyst
Stereoselective Method for the Production of Clopidogrel
申请人:Stohandl Jiri
公开号:US20070219166A1
公开(公告)日:2007-09-20
The present invention relates to processes for preparing a compound of the general formula (Ia)
wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II)
wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.