Synthesis and biological activity of P2–P4 azapeptidomimetic P1-argininal and P1-ketoargininamide derivatives: a novel class of serine protease inhibitors
摘要:
Molecular modeling and topographic considerations of the thrombin-specific sequences Boc-Asp-Pro-Arg-TS or Ac-d-Phe-Pro-Arg-TS (TS = transition state analog electrophilic center) and related scaffolds led to the design of novel P-2-P-4-azapeptidomimetic P-1-argininal and P-1-ketoargininamide derivatives (3a-j). The synthesis and biological activity of these potential serine protease inhibitors are presented. (C) 1997, Elsevier Science Ltd.
[EN] PROCESS FOR MAKING BETA 3 AGONISTS AND INTERMEDIATES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'AGONISTES BÊTA 3 ET D'INTERMÉDIAIRES ASSOCIÉS
申请人:MERCK SHARP & DOHME
公开号:WO2013062881A1
公开(公告)日:2013-05-02
The present invention is directed to processes for preparing beta 3 agonists of Formula (I) and Formula (II) and their intermediates. The beta 3 agonists are useful in the treatment of certain disorders, including overactive bladder, urinary incontinence, and urinary urgency.
Introduction of methionine mimics on 3-arylthiophene: influence on protein farnesyltransferase inhibition and on antiparasitic activity
作者:Damien Bosc、Elisabeth Mouray、Philippe Grellier、Sandrine Cojean、Philippe M. Loiseau、Joëlle Dubois
DOI:10.1039/c3md00065f
日期:——
new protein farnesyltransferase inhibitors with antiparasitic activity, we found that addition of a methionine residue at position 2 of 3-arylthiophenes greatly improved enzyme inhibition. To investigate the influence of this methionine residue on FTase and antiparasitic activities, 29 novel tetrasubstituted thiophenes bearing methionine or analogous moieties were synthesised. These new derivatives were
[EN] AZA-PEPTIDE ALDEHYDES AND KETONES<br/>[FR] ALDÉHYDES ET CÉTONES AZA-PEPTIDIQUES
申请人:OHIO STATE INNOVATION FOUNDATION
公开号:WO2017151587A1
公开(公告)日:2017-09-08
The present disclosure relates to compositions for inhibiting proteases, methods for synthesizing the compositions, and methods of using the disclosed protease inhibitors. Aspects of the invention include aza-peptide aldehyde and ketone compositions that inhibit proteases. The disclosed compounds, pharmaceutically acceptable salts, pharmaceutically acceptable derivatives, prodrugs, or combinations thereof can be used to treat disease or pathological conditions related to the activity of proteases associated with a specific disease or condition.
diprotected derivative BocNHNH(Boc)CH(2)CO(2)H and suppressed with the fully protected acid. Despite the instability of the imidocarbonate group toward acids and bases, a low-cost and effective route was sought for the preparation of the tris(Boc)-protected derivative. The N,N,N'-tris(Boc)hydrazinoacetic acid could be introduced on the solid phase after or before peptide elongation using Fmoc/tert-butyl
基于部分或完全Boc保护的肼基乙酸衍生物的固相偶联,报道了制备α-肼基乙酰基肽的新方法。对于单保护衍生物BocNHNHCH(2)CO(2)H,发现活化和偶合过程中活化酯的不想要的聚合反应程度都很高,但可以用双保护衍生物BocNHNH(Boc)CH(2)CO( 2)H,并用完全保护的酸抑制。尽管亚氨基碳酸酯基团对酸和碱不稳定,但仍寻求一种低成本且有效的途径来制备三(Boc)-保护的衍生物。N,N,N′-三(Boc)肼基乙酸可以在肽延长之后或之前使用Fmoc /叔丁基化学方法引入固相。在后一种情况下,模型固体支持物的HR MAS NMR分析表明,在重复进行的哌啶处理过程中,一个Boc基团的部分损失。尽管存在这种轻微的不稳定性,但发现N,N,N'-三(Boc)肼基乙酸是一种非常方便的试剂,可用于稳定,易于扩展的肼基肽的高产率和高纯度制备。