Gold-Catalyzed Synthesis of 3-Pyrrolidinones and Nitrones from N-Sulfonyl Hydroxylamines via Oxygen-Transfer Redox and 1,3-Sulfonyl Migration
作者:Hyun-Suk Yeom、Eunsu So、Seunghoon Shin
DOI:10.1002/chem.201002863
日期:2011.2.7
Golden touch: Gold‐catalyzed reaction of N‐sulfonyl hydroxylamines with terminal alkyne led to 3‐pyrrolidinones by means of an oygen‐transfer redox reaction. This protocol constitutes a direct method for forming α‐amino carbonyl compounds. In sharp contrast, those with internal alkynes underwent 1,3‐sulfonyl migration leading to 3‐sulfonyl cyclic nitrones.
of aryl iodides were coupled with aromatic and aliphatic terminal alkynes to give the corresponding 1,2-disubstituted aromatic alkynes in good yields by using only 0.4 mol % of the heterogeneous 10 % Pd/C as the catalyst without a ligand, copper salt, or amine in an aqueous medium.
Easy Copper-, Ligand- and Amine-Free Sonogashira Coupling Reaction Catalyzed by Palladium on Carbon at Low Catalyst Loading and by Exposure to Air
作者:Guolin Zhang
DOI:10.1055/s-2005-863720
日期:——
An easy copper-, ligand and amine-free Sonogashira coupling reaction catalyzed by commercially available palladium on carbon with air at low catalyst loading (0.2 mol% Pd) has been developed. Aryl iodides coupled with aromatic alkynes gave good to excellent yields and with aliphatic alkyne gave moderate to good yields. The reaction system is easy to handle.
[EN] HETEROCYCLIC MITOCHONDRIAL ACTIVITY INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS HÉTÉROCYCLIQUES DE L'ACTIVITÉ MITOCHONDRIALE ET UTILISATIONS ASSOCIÉES
申请人:UNIV MONTREAL
公开号:WO2019084662A1
公开(公告)日:2019-05-09
Heterocyclic compounds of Formula (I) and pharmaceutically acceptable salt thereof are disclosed. The use of such heterocyclic compounds and pharmaceutically acceptable salt thereof for the treatment of cancers, and more particularly cancers sensitive to mitochondrial activity inhibition and increased reactive oxygen species (ROS) levels, is also disclosed. Such cancers include acute myeloid leukemia (AML), preferably AML characterized by certain features, such as high level of expression of one or more Homeobox (HOX)-network genes, high and/or low expression of specific genes, the presence of one or more cytogenetic or molecular risk factors such as intermediate cytogenetic risk, Normal Karyotype (A/K), mutated NPM1, mutated CEBPA, mutated FLT3, mutated DNMT3A, mutated TET2, mutated IDH1, mutated IDH2, mutated RUNX1, mutated WT1, mutated SRSF2, intermediate cytogenetic risk with abnormal karyotype (intern(abnK)), trisomy 8 (+8) and/or abnormal chromosome (5/7), and/or a high leukemic stem cell (LSC) frequency.