Gold Catalysts Can Generate Nitrone Intermediates from a Nitrosoarene/Alkene Mixture, Enabling Two Distinct Catalytic Reactions: A Nitroso-Activated Cycloheptatriene/Benzylidene Rearrangement
作者:Sayaji Arjun More、Rahul Dadabhau Kardile、Tung-Chun Kuo、Mu-Jeng Cheng、Rai-Shung Liu
DOI:10.1021/acs.orglett.1c01857
日期:2021.7.16
Gold-catalyzedreactions of cycloheptatrienes with nitrosoarenes yield nitrone derivatives efficiently. This reaction sequence enables us to develop gold-catalyzed aerobic oxidations of cycloheptatrienes to afford benzaldehyde derivatives using CuCl and nitrosoarenes as co-catalysts (10–30 mol %). Our density functional theory calculations support a novel nitroso-activated rearrangement, tropylium
[EN] COMPOSITIONS AND METHODS FOR TREATING RESPIRATORY INJURY OR DISEASE<br/>[FR] COMPOSITIONS ET MÉTHODES DE TRAITEMENT D'UNE LÉSION OU MALADIE RESPIRATOIRE
申请人:UNIV PITTSBURGH
公开号:WO2015089087A1
公开(公告)日:2015-06-18
A method for treating a respiratory injury or disease comprising: administering to a patient in need of treatment a pharmaceutical composition comprising a compound of general Formula I: or salt, ester, solvate, hydrate, or prodrug thereof; wherein: x is an integer from 1 to 10; A and B are each, independently, C3-7 cycloalkyl, C3-7 cycloalkyl-Ci-6alkyl, C3-7 heterocycloalkyl, C3-7 heterocycloalkyl-C1-6 alkyl, C6-1oaryl, C6-1oaryl-C1-6alkyl, C3-9 heteroaryl, or C3-9heteroaryl-C1-6alkyl; and n and p are each, independently, integers from 1 to 10; and a pharmaceutically acceptable carrier, excipient, or diluent.
[EN] NOVEL AZAINDOLE DERIVATIVES AS SELECTIVE HISTONE DEACETYLASE (HDAC) INHIBITORS AND PHARMACEUTICAL COMPOSITIONS COMPRISING THE SAME<br/>[FR] NOUVEAUX DÉRIVÉS AZAINDOLE COMME INHIBITEURS SÉLECTIFS DE L'HISTONE DÉSACÉTYLASE (HDAC) ET COMPOSITIONS PHARMACEUTIQUES LES COMPRENANT
申请人:CHONG KUN DANG PHARM CORP
公开号:WO2015087151A1
公开(公告)日:2015-06-18
The present invention relates to novel azaindole derivatives, and more particularly, to novel azaindole derivatives having histone deacetylase (HDAC) inhibitory activity, isomers thereof, pharmaceutically acceptable salts thereof, hydrates thereof or solvates thereof, the use thereof for the preparation of pharmaceutical compositions, pharmaceutical compositions containing the same, a method of treating disease using the pharmaceutical compositions, and methods for preparing the novel azaindole derivatives. The novel azaindole derivatives according to the present invention are selective histone deacetylase (HDAC) inhibitors, and may be used as agents for treating malignant tumor diseases, inflammatory diseases, rheumatoid arthritis, and neurodegenerative diseases.
Functionalization of the Benzylic C-H Bonds in Azaarenes by Cobalt-Catalyzed 1,4-Addition to Enones
作者:Zaini Jamal、Yong-Chua Teo、Ling-Keong Wong
DOI:10.1002/ejoc.201403203
日期:2014.11
Functionalization of the C(sp3)–H bonds in azaarenes was catalyzed by CoCl2 as an inexpensive Lewis acid catalyst. Enones were demonstrated to be good C=C electrophilic acceptors for the construction of various azaarene-containing 1,4-addition products in yields of up to 95 %.
Molecular Design of Donor-Acceptor-Type Organic Photocatalysts for Metal-free Aromatic C−C Bond Formations under Visible Light
作者:Lei Wang、Jeehye Byun、Run Li、Wei Huang、Kai A. I. Zhang
DOI:10.1002/adsc.201800950
日期:2018.11.16
Metal‐free and photocatalytic radical‐mediated aromatic C−C bond formations offer a promising alternative pathway to the conventional transitionmetal‐catalyzed cross‐coupling reactions. However, the formation of aryl radicals from common precursors such as aryl halides is highly challenging due to their extremely high reductive potential. Here, we report a structural design strategy of donor‐acceptor‐type
无金属和光催化自由基介导的芳族碳键形成为常规过渡金属催化的交叉偶联反应提供了有希望的替代途径。然而,由于它们的极高的还原电势,由常见的前体例如芳基卤化物形成芳基是非常具有挑战性的。在这里,我们报告了供体-受体型有机光催化剂通过芳基卤化物的还原脱卤作用形成可见光驱动的CC键形成的结构设计策略。通过简单的供体-受体部分的杂原子工程,可以将光催化剂的还原电势与SCE进行系统地校正为−2.04 V vs. SCE。分子光催化剂的高还原电位可以将各种芳基卤化物还原为芳基,从而与杂芳烃形成C-C键。