Nucleic Acid Related Compounds. 82. Conversions of Adenosine to Inosine 5′-Thioether Derivatives withAspergillus oryzaeAdenosine Deaminase or Alkyl Nitrites. Substrate and Inhibitory Activities of Inosine 5′-Thioether Derivatives with Purine Nucleoside Phosphorylase
摘要:
Adenosine derivatives lacking a 5'-hydroxyl group seldom act as alternative substrates of adenosine deaminases from calf intestine and other mammalian sources. A deaminase from Aspergillus oryzae deaminated adenosine 5'-thioether derivatives cleanly and more efficiently than alkyl nitrites. The inosine derivatives were very poor alternative substrates and weak inhibitors of purine nucleoside phosphorylase.
Design, synthesis, and biological evaluation of novel human 5′-deoxy-5′-methylthioadenosine phosphorylase (MTAP) substrates
摘要:
The structure-based design, chemical synthesis, and biological evaluation of novel MTAP substrates are described. These compounds incorporate various C5'-moieties and are shown to have different k(cat)/K values compared with the natural MTAP substrate (MTA). (c) 2005 Elsevier Ltd. All rights reserved.
Facile Chemoenzymatic Strategies for the Synthesis and Utilization of<i>S</i>-Adenosyl-<scp>L</scp>-Methionine Analogues
作者:Shanteri Singh、Jianjun Zhang、Tyler D. Huber、Manjula Sunkara、Katherine Hurley、Randal D. Goff、Guojun Wang、Wen Zhang、Chunming Liu、Jürgen Rohr、Steven G. Van Lanen、Andrew J. Morris、Jon S. Thorson
DOI:10.1002/anie.201308272
日期:2014.4.7
the chemoenzymaticsynthesis of 29 non‐native SAM analogues. As a proof of concept for the feasibility of natural product “alkylrandomization”, a small set of differentially‐alkylated indolocarbazole analogues was generated by using a coupled hMAT2–RebM system (RebM is the sugar C4′‐O‐methyltransferase that is involved in rebeccamycin biosynthesis). The ability to couple SAM synthesis and utilization
据报道,用于合成S-腺苷-L-甲硫氨酸 (SAM) 类似物的化学酶平台与下游 SAM 利用酶兼容。合成了 44 种非天然 S/Se 烷基化 Met 类似物,并将其用于探测五种不同的蛋氨酸腺苷转移酶 (MAT) 的底物特异性。人类 MAT II 是所分析的 MAT 中最受允许的之一,并且能够化学酶合成 29 种非天然 SAM 类似物。作为天然产物“烷基随机化”可行性的概念证明,通过使用耦合的 hMAT2-RebM 系统(RebM 是参与瑞贝卡霉素的糖 C4'- O-甲基转移酶)生成了一小组差异烷基化吲哚并咔唑类似物。生物合成)。在单个容器中耦合 SAM 合成和利用的能力避免了与 SAM 类似物快速分解相关的问题,从而为进一步研究各种 SAM 利用酶打开了大门。
Combination therapies for treating methylthioadenosine phosphorylase deficient cells
申请人:——
公开号:US20040043959A1
公开(公告)日:2004-03-04
The present invention is directed to combination therapies for treating cell proliferative disorders associated with methylthioadenosine phosphorylase (MTAP) deficient cells in a mammal. The combination therapies selectively kill MTAP-deficient cells by administering an inhibitor of de novo inosinate synthesis and administering an anti-toxicity agent, wherein the inhibitors of de novo inosinate synthesis are inhibitors of glycinamide ribonucleotide formyltransferase (“GARFT”) and/or aminoinidazolecarboximide ribonucleotide formyltransferase (“AICARFT”), and the anti-toxicity agent is an MTAP substrate (e.g. methylthioadenosine or “MTA”), a precursor of MTA, an analog of an MTA precursor or a prodrug of an MTAP substrate.
The use of adenosine compounds for the preparation in the treatment of ischaemia
申请人:BIORESEARCH S.p.A.
公开号:EP0526866A1
公开(公告)日:1993-02-10
The use of adenosine compounds chosen from the group consisting of 5'-deoxy-5'-methylthioadenosine, 5'-deoxy-5'-isobutylthioadenosine, 5'-deoxy-5'-benzylthioadenosine, and 5'-deoxy-5'-methylthio N6 methyladenosine, for the preparation of pharmaceutical compositions for the treatment of forms of ischaemia.