[EN] SALT AND POLYMORPHIC FORMS OF (3R,4S)-L-((4-AMINO-5H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)METHYL)-4(METHYLTHIOMETHYL)PYRODIN-3-OL(MTDIA) [FR] FORMES DE SEL ET FORMES POLYMORPHES DE (3R,4S)-1-((4-AMINO-5H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)METHYL)-4-(METHYLTHIOMETHYL)PYRROLIDIN-3-OL (MTDIA)
合成并研究了在[ 3]中带有2-,N 6-,7-,8和/或9位取代基的腺嘌呤衍生物和一系列脱氮嘌呤。H]腺嘌呤在大鼠大脑皮层膜制剂(rAde1R)中对腺嘌呤受体的结合研究。观察到陡峭的结构-活性关系。最好的取代是在8位(氨基,二甲基氨基,哌啶基,哌嗪基)或9位(2-吗啉代乙基)中带有碱性残基或在6位氨基官能团处引入极性取代基(羟基,氨基,乙酰基)是最好的修改。在稳定表达rAde1R的1321N1星形细胞瘤细胞的腺苷酸环化酶测定中,对所选腺嘌呤衍生物的功能评估表明,所研究的所有化合物均为激动剂或部分激动剂。在人类胚胎肾脏(HEK293)细胞的结合研究中还对化合物的子集进行了研究,该细胞还表达了高亲和力的腺嘌呤结合位点。人细胞系的结构亲和力关系与rAde1R相似,但不完全相同。特别是,N 6-乙酰腺嘌呤(25,K i大鼠:2.85μM; K i人:0.515μM)和8-氨基腺嘌呤(33,K i
New Antibiotic Candidates against <i>Helicobacter pylori</i>
作者:Shanzhi Wang、Scott A. Cameron、Keith Clinch、Gary B. Evans、Zhimeng Wu、Vern L. Schramm、Peter C. Tyler
DOI:10.1021/jacs.5b06110
日期:2015.11.18
consequence, 10 new H. pylori antibiotic candidates are identified, all of which prevent H. pylori growth at concentrations 16-2000-fold lower than the five antibiotics, amoxicillin, metronidazole, levofloxacin, tetracyclin, and clarithromycin, commonly used to treat H. pylori infections. X-ray crystal structures of MTAN cocrystallized with several inhibitors show them to bind in the activesite making interactions
[EN] TREATMENT OF H. PYLORI INFECTIONS USING MTAN INHIBITORS<br/>[FR] TRAITEMENT D'INFECTIONS DUES À H PYLORI À L'AIDE D'INHIBITEURS DE LA MTAN
申请人:EINSTEIN COLL MED
公开号:WO2015123101A1
公开(公告)日:2015-08-20
Methods of treating infections due to Helicobacter pylori (H. pylori), in particular in subjects having a peptic ulcer, are disclosed where the methods comprise administering inhibitors of H. pylori MTAN (5'-methylthioadenosine nucleosidase) to the subject.
Oligonucleotide transition state analogues of saporin L3
作者:Jennifer M. Mason、Hongling Yuan、Gary B. Evans、Peter C. Tyler、Quan Du、Vern L. Schramm
DOI:10.1016/j.ejmech.2016.10.059
日期:2017.2
impressive results. However, dose-limiting toxicity due to vascular leak syndrome limits success of the therapy. We have previously reported some tight-binding transition state analogues of Saporin L3 that mimic small oligonucleotide substrates in which the susceptible adenosine has been replaced by a 9-deazaadenyl hydroxypyrrolidinol derivative. They provide the first step in the development of rescue
[EN] TREATMENT OF HELICOBACTER PYLORI INFECTIONS<br/>[FR] TRAITEMENT DES INFECTIONS À HELICOBACTER PYLORI
申请人:EINSTEIN COLL MED
公开号:WO2014025842A1
公开(公告)日:2014-02-13
Methods of treating infections due to Helicobacter pylori (H. pylori), in particular in subjects having a peptic ulcer, are disclosed where the methods comprise administering inhibitors of H. pylori MTAN (5'-methylthioadenosine nucleosidase) to the subject.
Azetidine Based Transition State Analogue Inhibitors of <i>N</i>-Ribosyl Hydrolases and Phosphorylases
作者:Gary B. Evans、Richard H. Furneaux、Ben Greatrex、Andrew S. Murkin、Vern L. Schramm、Peter C. Tyler
DOI:10.1021/jm701265n
日期:2008.2.1
ribooxacarbenium carbon from the fixed purine to phosphate and water nucleophiles, respectively. As the lysis reaction progresses along the reaction coordinate, the distance between the purine and carbocation increases and the distance between carbocation and nucleophile decreases. Immucillin-H and DADMe-immucillin-H have been shown previously to be potent inhibitors of purinenucleoside phosphorylases and lie more