Facile and rapid route for the synthesis of novel norstatine analogs via PADAM-cyclization methodology
作者:Arthur Y. Shaw、Federico Medda、Christopher Hulme
DOI:10.1016/j.tetlet.2011.12.073
日期:2012.3
The following report describes novel methodology for the rapid synthesis of unique conformationally constrained norstatine analogs of potential biological relevance. A PADAM (Passerini reaction–Amine Deprotection–Acyl Migration reaction) sequence is followed by a TFA-mediated microwave-assisted cyclization to generate the final benzimidazole isostere of the norstatine scaffold in moderate to good yields
starting material in an Ugi reaction followed by an acid-mediated indolecyclization to result in the formation of a new C–C bond. Changes to the other starting materials in this Ugi/indolecyclization reaction sequence extended the scope of this method to include a nucleophilic substitution reaction and an Ugi/deprotection/cyclization (UDC) strategy, which provided access to two new series of heterocyclic
通过在 Ugi 反应中使用 N-Boc-吡咯-2-甲醛作为起始材料,然后通过酸介导的吲哚环化形成新的 C-C 键,制备了一系列吡咯并吡啶酮。对该 Ugi/吲哚环化反应序列中其他起始材料的更改扩展了该方法的范围,包括亲核取代反应和 Ugi/脱保护/环化 (UDC) 策略,这提供了获得两个新系列杂环化合物的途径。该方法代表了一种在酸性条件下制备吡咯并吡啶酮的简便有效的一锅法。
[EN] SMALL MOLECULE INHIBITORS OF THE ANDROGEN RECEPTOR ACTIVITY AND/OR EXPRESSION AND USES THEREOF<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DE L'ACTIVITÉ ET/OU DE L'EXPRESSION DU RÉCEPTEUR DES ANDROGÈNES ET UTILISATIONS CORRESPONDANTES
申请人:UNIV ARIZONA
公开号:WO2020123670A1
公开(公告)日:2020-06-18
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a piperazine (or similar) structure which function as antagonists of androgen receptor activity, and their use as therapeutics for the treatment of cancer (e.g., castration-resistant prostate cancer) and other conditions characterized with androgen receptor activity and/or androgen receptor expression.
Expeditious Routes to Polycyclic Molecular Frameworks via One-Pot, Two-Step Ugi Ring-Closing Sequences
作者:Christopher Hulme、Zhigang Xu、Fabio De Moliner、Alexandra Cappelli、Muhammed Ayaz
DOI:10.1055/s-0033-1340219
日期:——
Ugi condensation between ethyl glyoxylate, isonitriles, N -Boc-α-amino acids, and mono - N -Boc-protected diamines followed by a series of acid-promoted cyclization steps in a one-pot fashion is reported. This process allows for the assembly of complex polycyclic structures by means of just two simple synthetic operations and a single chromatographic purification in high overall yields. Of note, the
一个非常通用和强大的多组分反应方案,包括乙醛酸乙酯、异腈、N-Boc-α-氨基酸和单-N-Boc-保护的二胺之间的 Ugi 缩合,然后是一系列酸促进的环化步骤-锅时尚报道。该过程允许通过仅两个简单的合成操作和单次色谱纯化以高总产率组装复杂的多环结构。值得注意的是,据报道,第一个支架源自高度选择性的闭环事件序列,涉及三个内部氨基亲核试剂。
Ugi/Aldol Sequence: Expeditious Entry to Several Families of Densely Substituted Nitrogen Heterocycles
作者:Zhigang Xu、Fabio De Moliner、Alexandra P. Cappelli、Christopher Hulme
DOI:10.1002/anie.201202575
日期:2012.8.6
Complexity from simplicity: Nitrogen‐containing heterocycles have been assembled by means of unprecedented domino processes designed to take advantage of diversity assembly using strategically decorated Ugi products (see scheme). The aldol reaction is the second common denominator which enables sequences of up to five steps in one pot, thus producing unique molecular architectures in rapid fashion
来自简单的复杂性:通过前所未有的多米诺骨牌工艺组装含氮杂环,旨在利用具有战略意义的 Ugi 产品的多样性组装(见方案)。羟醛反应是第二个共同点,它可以在一锅中最多五个步骤的序列,从而快速产生独特的分子结构。