Total Synthesis of (+)-Batzelladine A and (−)-Batzelladine D via [4 + 2]-Annulation of Vinyl Carbodiimides with <i>N</i>-Alkyl Imines
作者:Michael A. Arnold、Kenneth A. Day、Sergio G. Durón、David Y. Gin
DOI:10.1021/ja063860+
日期:2006.10.1
this strategy, together with additional key steps such as long-range directed hydrogenation and diastereoselective intramolecular iodo-amination, led to highly convergent total syntheses of (-)-batzelladineD and (+)-batzelladine A with excellent stereocontrol.
已经开发出乙烯基碳二亚胺与手性 N-烷基亚胺的非对映选择性 [4 + 2]-环化,以获取 batzelladine 生物碱的立体化学丰富的多环胍核。该策略的应用,连同其他关键步骤,如远程定向氢化和非对映选择性分子内碘胺化,导致 (-)-batzelladine D 和 (+)-batzelladine A 的高度收敛全合成具有出色的立体控制。
Synthesis of Optically Active (R)- and (S)-β-Arginine from Pyroglutamic Acid
The first synthesis of optically active -arginine was achieved starting from commercially available pyroglutamic acid. The new synthetic protocol is characterized by the use of nitrile as a carboxylic acid surrogate which could be transformed to the corresponding 2-acyl-1,3-bis(1,1-dimethylethyl)imidodicarbonic acid ester (active amide) via Pt-catalyzed hydration under the mild conditions. The active
Selective leads: In this study, we generated a new series of serotonin 5‐HT7 receptorantagonists. Their synthesis, structure–activity relationships, and selectivity profiles are reported. This series includes 5‐HT7 antagonists with unprecedented high selectivity for the 5‐HT7 receptor, setting the stage for lead optimization of drugs acting on a range of neurological targets.
[EN] BETA-LACTAMASE INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE BÊTA-LACTAMASE
申请人:ENTASIS THERAPEUTICS LTD
公开号:WO2018053215A1
公开(公告)日:2018-03-22
The present invention is directed to compounds which are beta-lactamase inhibitors. The compounds and their pharmaceutically acceptable salts are useful in combination with beta- lactam antibiotics, for the treatment of bacterial infections, including infections caused by drug resistant organisms, including multi-drug resistant organisms. The present invention includes compounds according to Formula (I): or a pharmaceutically acceptable salt thereof, wherein the values of R1, R2, R3, R4, R5 and R6 are described herein.
[EN] NOVEL FUNCTIONALIZED LACTAMS AS MODULATORS OF THE 5-HYDROXYTRYPTAMINE RECEPTOR 7 AND THEIR METHOD OF USE<br/>[FR] NOUVEAUX LACTAMES FONCTIONNALISÉS COMME MODULATEURS DU RÉCEPTEUR 7 DE LA 5-HYDROXYTRYPTAMINE, ET PROCÉDÉ POUR LEUR UTILISATION
申请人:UNIV TEMPLE
公开号:WO2021097116A1
公开(公告)日:2021-05-20
Described herein are new, selective modulators of the 5 -HT7 receptor. These selective compounds can be useful for the treatment of CNS and non-CNS indications. Compounds described herein can be selective in targeting 5-HT7 receptors as compared to other receptors and/or by selective targeting 5-HT7 receptors expressed in certain tissues or organs, thereby effective selectivity through a particular partitioning profile of the 5- HT7 modulator.