几十年来,基于单电子转移使用 Ni 和 Fe 催化剂体系的烷基卤化物和有机金属物种的交叉偶联已被广泛且分别地研究。在这里,我们展示了氧化还原活性酯(从羧酸中分离和原位衍生)与有机锌和有机镁物种的首次偶联,使用最初为烷基卤化物开发的 Fe 基催化剂体系。这项工作通过展示与 Ni 催化剂的直接比较来放置在上下文中,涉及超过 40 个示例,涵盖一系列初级、二级和三级底物。这种新的 C-C 耦合具有可扩展性和可持续性,并且在某些情况下比其基于 Ni 的耦合表现出许多明显的优势。
几十年来,基于单电子转移使用 Ni 和 Fe 催化剂体系的烷基卤化物和有机金属物种的交叉偶联已被广泛且分别地研究。在这里,我们展示了氧化还原活性酯(从羧酸中分离和原位衍生)与有机锌和有机镁物种的首次偶联,使用最初为烷基卤化物开发的 Fe 基催化剂体系。这项工作通过展示与 Ni 催化剂的直接比较来放置在上下文中,涉及超过 40 个示例,涵盖一系列初级、二级和三级底物。这种新的 C-C 耦合具有可扩展性和可持续性,并且在某些情况下比其基于 Ni 的耦合表现出许多明显的优势。
Homolytic reactions of cubanes. Generation and characterization of cubyl and cubylcarbinyl radicals
作者:Ernest W. Della、Nicholas J. Head、Philip Mallon、John C. Walton
DOI:10.1021/ja00053a008
日期:1992.12
A series of 4-substituted cubyl radicals was generated by bromine atom abstraction from 1-bromo-4-substituted cubanes. EPR observations showed that the cubyl radicals abstracted secondary hydrogen atoms from the ethyl groups of triethylsilane and decayed mainly by second-order combination reactions. tert-Butoxyl radicals abstracted hydrogen atoms from cubane at least 26 times more rapidly than from
通过从 1-bromo-4-取代的立方烷中提取溴原子,产生了一系列 4-取代的立方自由基。EPR 观察表明,cubyl 自由基从三乙基硅烷的乙基中提取二级氢原子,主要通过二级组合反应衰变。在-90 o C 时,叔丁氧基从立方烷中提取氢原子的速度至少比环丙烷快26 倍。立方烷上的吸电子取代基大大降低了这一速度。叔丁氧基自由基选择性地从甲基立方烷中提取笼氢而不是伯甲基氢
Free-radical arylation of cubane using cubyl lead acylates
作者:Robert M. Moriarty、Jaffar S. Khosrowshahi、Richard S. Miller、Judith Flippen-Andersen、Richard Gilardi
DOI:10.1021/ja00206a041
日期:1989.11
Synthese d'halogeno (ou non) phenyl-4 cubanecarboxylate de methyle a partir de l'acide cubanedicarboxylique-1,4 et en presence de tetraacetoxy plumbane
合成 d'halogeno (ou non) phenyl-4 cubanecarboxylate demethyle a partir de l'acide cubanedicarboxylique-1,4 et en存在 de tetraacetoxy plumbane
Cubane Cross-Coupling and Cubane-Porphyrin Arrays
作者:Stefan S. R. Bernhard、Gemma M. Locke、Shane Plunkett、Alina Meindl、Keith J. Flanagan、Mathias O. Senge
DOI:10.1002/chem.201704344
日期:2018.1.24
Herein, an improved methodology for aryl‐cubane cross‐coupling is reported. The peculiarities of the cubane core and its behavior during cross‐coupling conditions were analyzed, while the versatility of this adapted Baran cross‐coupling methodology was demonstrated by the synthesis of various aryl‐cubane systems, including coupling products of cubanes and porphyrins. Furthermore, arm extension of alkynyl‐cubanes
Cubanecarboxylic Acids. Crystal Engineering Considerations and the Role of C−H···O Hydrogen Bonds in Determining O−H···O Networks
作者:Srinivasan S. Kuduva、Donald C. Craig、Ashwini Nangia、Gautam R. Desiraju
DOI:10.1021/ja981967u
日期:1999.3.1
to its stabilization by auxiliary C−H···Ohydrogenbonds formed by the relatively acidic cubyl C−H groups. The frequency of occurrence of 6 also facilitates its definition as a useful supramolecular synthon. As is true in many catemers, the formation of 6 is sensitive to steric factors. Therefore, the robustness of this synthon may be assessed by analyzing the crystal structures of molecules wherein
[EN] TREATMENT OF MYC-DRIVEN CANCERS WITH GSPT1 DEGRADERS<br/>[FR] TRAITEMENT DE CANCERS ENTRAÎNÉS PAR MYC AVEC DES AGENTS DE DÉGRADATION GSPT1
申请人:MONTE ROSA THERAPEUTICS AG
公开号:WO2022152822A1
公开(公告)日:2022-07-21
The present disclosure relates to new methods to predict the responsiveness of cancer patients to GSPT1 negative modulators and thus determine the of efficacy GSPT1 negative modulators to treat cancer patients by determining the level of one or more biomarkers in samples of the patients. The present disclosure also relates to applications of these methods, which includes stratifying cancer malignancies, in particular identifying myc-driven cancers, and thereby devising optimized and personalized treatments for these cancer patients, as well as optimizing the selection of patient populations for respective clinical trials.