Iodotrimethylsilane and Catalytic Iodine Promoted Cyclization for the Facile Synthesis of 3-Monoarylated Five-Membered Benzosultams
摘要:
3-Monoarylated five-membered benzosultams with various functional groups were prepared by simple and convenient two-step procedures. N-t-Bu-benzenesulfonamides were lithiated and reacted with substituted aromatic aldehydes to form the corresponding carbinols, which were converted to the cyclic compounds via a sequence of consecutive processes mediated by TMSCl-NaI-MeCN reagent and catalytic amount of iodine. Iodine played a crucial role in the eliminating the reductive side reaction in the cyclization processes.
NOVEL SUBSTITUTED-1, 1-DIOXO-BENZO[1,2,4]THIADIZIN-3-ONES, PREPARATION METHOD THEREOF, AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
公开号:EP2007760A1
公开(公告)日:2008-12-31
[EN] NOVEL SUBSTITUTED-1, 1-DIOXO-BENZO[1,2,4]THIADIZIN-3-ONES, PREPARATION METHOD THEREOF, AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME<br/>[FR] NOUVELLES 1-DIOXO-BENZO[1,2,4]THIADIZIN-3-ONES 1-SUBSTITUÉES, LEUR PROCÉDÉ DE PRÉPARATION ET COMPOSITION PHARMACEUTIQUE CONTENANT CELLES-CI
申请人:KOREA RESERACH INST OF CHEMICA
公开号:WO2007108569A1
公开(公告)日:2007-09-27
[EN] The present invention relates to compounds of substituted-1,1-dioxo-benzo[1,2,4]thiadiazin-3-ones acting as a 5HT6 receptor antagonist, a preparation method thereof, and a pharmaceutical composition containing the same for treatment of the central nervous system disorders. The compounds of substituted-1,1-dioxo-benzo[1,2,4]thiadiazin-3-ones according to the present invention have excellent binding affinity for the 5HT6 receptor and excellent selectivity for the 5HT6 receptor over other receptors. Also, the compounds reverse a disruption of PPI by apomorphine and don't show rotatod deficit in mice. Therefore the compounds according to the present invention may be valuably used for treatment of a 5HT6 receptor relating disorders. [FR] La présente invention concerne des composés à base de 1-dioxo-benzo[1,2,4]thiadiazin-3-ones 1-substituées agissant comme antagoniste du récepteur 5HT6, un procédé destiné à la préparation de ces composés, ainsi qu'une composition pharmaceutique contenant ces composés, destinée au traitement de troubles du système nerveux central. Ces composés à base de 1-dioxo-benzo[1,2,4]thiadiazin-3-ones 1-substituées selon la présente invention présentent une excellente affinité de liaison pour le récepteur 5HT6 et une excellente sélectivité pour le récepteur 5HT6 par rapport à d'autres récepteurs. Ces composés permettent également d'inverser la disruption de la PPI par l'apomorphine et ne présentent pas de déficit de coordination locomotrice dans le test du rotarod chez la souris. Ainsi, les composés selon la présente invention peuvent être utilisés dans le traitement de troubles liés au récepteur 5HT6.
Iodotrimethylsilane and Catalytic Iodine Promoted Cyclization for the Facile Synthesis of 3-Monoarylated Five-Membered Benzosultams
作者:Zhao-Peng Liu、Yue-Hui Dong、Qiong-Wei Ni、Shu-Tao Ma
DOI:10.3987/com-09-11884
日期:——
3-Monoarylated five-membered benzosultams with various functional groups were prepared by simple and convenient two-step procedures. N-t-Bu-benzenesulfonamides were lithiated and reacted with substituted aromatic aldehydes to form the corresponding carbinols, which were converted to the cyclic compounds via a sequence of consecutive processes mediated by TMSCl-NaI-MeCN reagent and catalytic amount of iodine. Iodine played a crucial role in the eliminating the reductive side reaction in the cyclization processes.
Chiral Iron Porphyrins Catalyze Enantioselective Intramolecular C(sp
<sup>3</sup>
)−H Bond Amination Upon Visible‐Light Irradiation
作者:Hua‐Hua Wang、Hui Shao、Guanglong Huang、Jianqiang Fan、Wai‐Pong To、Li Dang、Yungen Liu、Chi‐Ming Che
DOI:10.1002/anie.202218577
日期:——
An efficient method has been developed for the chiraliron porphyrin catalyzed transformation of aryl and arylsulfonyl azides into chiral indolines and sultams, respectively. The reaction proceeds upon visible light irradiation and with high yields and excellent enantioselectivities.