Enantioselective Syntheses
of 2-Substituted Pyrrolidines from Allylamines by Domino Hydroformylation-Condensation:
Short Syntheses of (<i>S</i>)-Nicotine and the
Alkaloid 225C
作者:Günter Helmchen、Pierre Dübon、Andreas Farwick
DOI:10.1055/s-0029-1217165
日期:——
2-substituted pyrrolidines based on rhodium-catalyzed hydroformylations of allylamines and their N-alkyl and N-acyl derivatives, which were prepared by asymmetric allylic substitutions, are described. The outcome of the hydrofonnylation reaction was controlled by the substituent at nitrogen, not by the substituent at carbon. In the case of N-alkylallylamines in situ reduction to the pyrrolidines occurred
Highly Enantioselective Rh-Catalyzed Alkenylation of Imines: Synthesis of Chiral Allylic Amines via Asymmetric Addition of Potassium Alkenyltrifluoroborates to <i>N</i>-Tosyl Imines
作者:Balraj Gopula、Chien-Wei Chiang、Way-Zen Lee、Ting-Shen Kuo、Ping-Yu Wu、Julian P. Henschke、Hsyueh-Liang Wu
DOI:10.1021/ol4035897
日期:2014.1.17
For the first time, simple N-tosyl aryl aldimines, prepared from the condensation of tosyl amide and aromaticaldehydes, can be used as substrates in the rhodium catalyzed 1,2-addition reaction using alkenylboron nucleophiles. In the presence of 1.5 mol % of [RhCl(1e)]2, enantioselective addition of various potassium alkenyltrifluoroborates to aryl aldimines furnished the corresponding chiral allylic
1-ARENESULFONYL-2-ARYL-PYRROLIDINE AND PIPERIDINE DERIVATIVES FOR THE TREATMENT OF CNS DISORDERS
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP1165510A1
公开(公告)日:2002-01-02
US6284785B1
申请人:——
公开号:US6284785B1
公开(公告)日:2001-09-04
[EN] 1-ARENESULFONYL-2-ARYL-PYRROLIDINE AND PIPERIDINE DERIVATIVES FOR THE TREATMENT OF CNS DISORDERS<br/>[FR] DERIVES DE 1-ARENESULFONYL-2-ARYL-PYRROLIDINE ET DE PIPERIDINE POUR LE TRAITEMENT DES TROUBLES DU SYSTEME NERVEUX CENTRAL
申请人:HOFFMANN LA ROCHE
公开号:WO2000058285A1
公开(公告)日:2000-10-05
The invention relates to compounds of general formula (I) wherein R1 signifies hydrogen, lower alkyl or hydroxy-lower alkyl; R2 signifies furyl, thienyl, pyridyl or phenyl, which is optionally substituted by 1 to 3 substituents, selected from lower alkyl, lower alkoxy, halogen, cyano, CF¿3? or -N(R?4)¿2; R3 signifies naphthyl or phenyl, which is optionally substituted by 1 to 3 substituents, selected from lower alkyl, lower alkoxy, halogen, acetyl, cyano, hydroxy-lower alkyl, -CH¿2?-morpholin-4-yl, lower alkyl-oxy-lower alkyl, lower alkyl-N(R?4)¿2 or CF3; R4 signifies, independently from each other, hydrogen or lower alkyl, with the exception of (RS)-2-phenyl-1-(toluene-4-sulfonyl)-pyrrolidine and (RS)-1-(toluene-4-sulfonyl)-2-p-tolyl-pyrrolidine as well as their pharmaceutically acceptable salts. The compounds described above are metabotropic glutamate receptor antagonists or agonists and therefore useful in the treatment of corresponding CNS disorders.