A New Synthesis of 3-Substituted Indolines and Indoles
摘要:
3-Phenyl- and 3-alkyl-3-hydroxyindolines were synthesized by intramolecular Barbier reaction of phenyl and alkyl N-(2-iodophenyl)-N-methylaminomethyl ketones with n-BuLi, which were easily prepared from N-methyl-2-iodoaniline and bromomethyl ketones. The treatment of the indolines with acid gave the corresponding indoles in quantitative yields.
N-Bromosuccinimide promoted and base switchable one pot synthesis of α-imido and α-amino ketones from styrenes
作者:Mahesh H. Shinde、Umesh A. Kshirsagar
DOI:10.1039/c5ob02034d
日期:——
N-Bromosuccinimide (NBS) promoted one pot strategy for the synthesis of α-amino functionalized aryl ketones starting from commercially available styrenes has been developed. NBS participates in multiple tasks, such as bromonium ion formation, oxidation of bromohydrin and providing a nucleophilic nitrogen source. The reaction can easily be switched between α-imido and α-amino ketones by the choice of base
5,6-dihydropyrone derivatives as protease inhibitors and antiviral agents
申请人:Warner-Lambert Company
公开号:US05840751A1
公开(公告)日:1998-11-24
The present invention relates to novel 5,6-dihydropyrone derivatives and related structures which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The 5,6-dihydropyrone derivatives are useful in the development of therapies for the treatment of bacterial and viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of multifunctionalized 5,6-dihydropyrones and of related structures.
Overcoming solid handling issues in continuous flow substitution reactions through ionic liquid formation
作者:Saeed K. Kashani、Ryan J. Sullivan、Mads Andersen、Stephen G. Newman
DOI:10.1039/c8gc00618k
日期:——
the use of acid scavenging organic bases that generate low- to moderate-melting ionicliquids upon protonation. The application of these bases towards the most commonly run substitutions are demonstrated, enabling reactions to be run in flow without requiring additional equipment, specific solvents, or dilute reaction conditions to prevent clogging.
4-Hydroxy-5,6-dihydropyrones. 2. Potent Non-Peptide Inhibitors of HIV Protease
作者:Bradley D. Tait、Susan Hagen、John Domagala、Edmund L. Ellsworth、Christopher Gajda、Harriet W. Hamilton、J. V. N. Vara Prasad、Donna Ferguson、Neil Graham、Donald Hupe、Carolyn Nouhan、Peter J. Tummino、Christine Humblet、Elizabeth A. Lunney、Alexander Pavlovsky、John Rubin、Stephen J. Gracheck、Eric T. Baldwin、T. N. Bhat、John W. Erickson、Sergei V. Gulnik、Beishan Liu
DOI:10.1021/jm970615f
日期:1997.11.1
The 4-hydroxy-5,6-dihydropyrone template was utilized as a flexible scaffolding from which to build potent active site inhibitors of HIVprotease. Dihydropyrone 1c (5,6-dihydro-4-hydroxy-6-phenyl-3-[(2-phenylethyl)thio]-2H-pyran-2-one) was modeled in the active site of HIVprotease utilizing a similar binding mode found for the previously reported 4-hydroxybenzopyran-2-ones. Our model led us to pursue