Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates
作者:Qihang Guo、Xiang Ren、Zhan Lu
DOI:10.1021/acs.orglett.8b03299
日期:2019.2.15
catalyst-controlled intramolecular unactivated C(sp3)-H amination and oxygenation of carbamates merging visible-light photocatalysis and earth-abundant transition metal catalysis have been reported. Useful amino alcohol and diol derivatives could be selectively obtained from readily available tertiary alcohol derivatives. The possible mechanisms have been proposed via a 1,5-HAT process followed by Lewis acid-controlled
A novel method for an efficient regioselective acetylation of carbohydrates and diols in aqueous solution is described. Treatment of substrates with 1-acetylimidazole, and tetramethyl-ammonium hydroxide (TMAH) in water under mild conditions gave highly regioselective acetylation for primary hydroxyl groups. This discovery provides an eco-friendly way for selective acetylation of non-protected glycosides
The present invention relates to a phenoxypropylamine compound of the formula (I)
1
wherein each symbol is as defined in the specification, an optically active compound thereof or a pharmaceutically acceptable salt thereof and hydrates thereof, which simultaneously show selective affinity for and antagonistic activity against 5-HT
1A
receptor, as well as 5-HT reuptake inhibitory activity, and can be used as antidepressants quick in expressing an anti-depressive effect.
Chemoselective CaO-Mediated Acylation of Alcohols and Amines in 2-Methyltetrahydrofuran
作者:Vittorio Pace、Pilar Hoyos、Andrés R. Alcántara、Wolfgang Holzer
DOI:10.1002/cssc.201200922
日期:2013.5
Calcium oxide is proposed as an innocuous acid scavenger for the chemoselective synthesis of amide‐ and ester‐type compounds. Although these molecules have wide spread applications in organic and pharmaceutical chemistry, and a large number of routes have been designed for their synthesis, the development of more efficient and environmentally friendly acylation strategies remains an ongoing challenge
[EN] COMPOUNDS AND COMPOSITIONS FOR COGNITION-ENHANCEMENT, METHODS OF MAKING, AND METHODS OF TREATING<br/>[FR] COMPOSÉS ET COMPOSITIONS POUR AMÉLIORER LA FONCTION COGNITIVE, PROCÉDÉS DE FABRICATION ET MÉTHODES DE TRAITEMENT
申请人:MITHRIDION INC
公开号:WO2010102218A1
公开(公告)日:2010-09-10
Muscarinic agonists, which are useful for stimulating muscarinic receptors and treating cognitive disorders, are provided. Methods of synthesizing such agonists also are provided. Also provided are compositions for enhancing cognitive function in subjects such as humans, the compositions comprising a muscarinic agonist or a pharmaceutically suitable form thereof. Also provided are methods of treating animals such as humans by administering such compositions.