Copper-Catalyzed Stereospecific C–S Coupling Reaction of Enantioenriched Tertiary Benzylic Amines via in Situ Activation with Methyl Triflate
作者:Wenlong Jiang、Nutao Li、Lihong Zhou、Qingle Zeng
DOI:10.1021/acscatal.8b03032
日期:2018.11.2
1-(thiophen-2-yl)ethanamine), and aminoacid esters containing a benzylamine moiety, are highly efficient substrates, and their chirality is efficiently transferred to the products (94–99% ee). The absolute configurations of the products are predictable and follow the pattern of SN2-type substitutions; an inversion of the absolute configuration of the tertiary amines occurs during the C–S coupling reaction. Not only
A new protocol was developed to synthesize (enantioenriched) thioethers and selenoethersfrom (chiral) benzylic trimethylammonium salts and di(hetero)aryl disulfides or diselenides. These syntheses were promoted by the presence of weak base and did not require the use of any transition metal, and resulted in the target products with good to excellent yields (72–94%). Using quaternary ammonium salts
Cu2O-catalyzed C–S bond cross coupling of alkane-/arene-sulfinates and (enantioenriched) benzylic quaternaryammoniumsalts has been developed. The product benzylic sulfones were obtained in good to high yields (75–96%). Chiral arylmethyl sulfones with high enantiomeric excess (90–94% ee) were also synthesized in the presence of Cu2O and 1,1′-bis-(diphenylphosphino)ferrocene (dppf).
A novel and excellent method for preventing and/or treating diseases related to a cannabinoid type 2 receptor, based on an agonistic action on a cannabinoid type 2 receptor. It was found that a hetero ring derivative mainly having two substituents, for example, a pyrimidine-5-carboxamide derivative having a substituent amino group at the 2-position, exhibits a potent agonistic action on a cannabinoid type 2 receptor, and can be an agent for preventing and/or treating diseases related to a cannabinoid type 2 receptor such as inflammatory diseases, pain, and the like.
[EN] SEROTONIN RECEPTOR-TARGETING COMPOUNDS AND METHODS<br/>[FR] COMPOSÉS DE CIBLAGE DE RÉCEPTEUR DE SÉROTONINERGIQUE ET PROCÉDÉS ASSOCIÉS
申请人:UNIV NORTHEASTERN
公开号:WO2015179366A1
公开(公告)日:2015-11-26
This invention relates to, in part, compositions and methods that are useful for, inter alia, the treatment of various diseases, including those linked to binding at a serotonin receptor. The compositions include chiral tetrahydronaphthalen-2-amine derivatives. Accordingly, the present invention provides for compositions and methods that agonize or antagonize one or more serotonin receptors and which find Use in the treatment of various neuropsychiatric diseases or disorders including, without limitation, autism spectrum disorder (ASD) or associated symptoms.