First Friedel-Crafts Reaction of the Baylis-Hillman Adducts Derived from Nitroolefins: Application towards Synthesis of Pyrrolidines and Spiropyrrolidines
Biocatalytic enantioselective approach to 3-aryl-2-nitropropanols: Synthesis of enantioenriched (R)-5-methoxy-3-aminochroman, a key precursor to the antidepressant drug Robalzotan
作者:Claudio Fuganti、Alessandro Sacchetti
DOI:10.1016/j.molcatb.2010.06.003
日期:2010.10
results of our studies on the biocatalytic enantioselective synthesis of different 3-aryl-2-nitropropanols are presented. These compounds could be obtained in moderate to good ee both by baker'syeast mediated reduction of (E)-2-nitro-3-arylprop-2-en-1-ol precursors and by lipase kineticresolution of racemic 3-aryl-2-nitropropanols. The synthesis of enantioenriched (R)-5-methoxy-3-aminochroman is also
nitroalkenes and various 1,3-dicarbonyl compounds, a one-pot organocatalyzed diastereo- and enantioselective synthesis of polyfunctionalized dihydro- and tetrahydropyran derivatives via a domino Michael-hemiacetalization sequence is reported. The title compounds bearing a variety of functional groups can be synthesized in this way in good yields (59–91%) and with moderate to excellent diastereoselectivities
[EN] PYRROLIDINE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND THEIR USE IN THERAPY<br/>[FR] DÉRIVÉS DE PYRROLIDINE, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT, ET LEUR UTILISATION EN THÉRAPIE
申请人:ABBVIE DEUTSCHLAND
公开号:WO2014140310A1
公开(公告)日:2014-09-18
The present invention relates to pyrrolidine derivatives of formula (I), or a physiologically tolerated salt thereof. The invention relates to pharmaceutical compositions comprising such pyrrolidine derivatives, and the use of such pyrrolidine derivatives for therapeutic purposes. The pyrrolidine derivatives are GlyT1 inhibitors.
A metal-free convenient synthesis of 4,5-disubstituted N-unsubstituted 1,2,3-triazoles via a cycloaddition–denitration process has been described. A variety of readily available nitroallylic alcohols were reacted smoothly with sodium azide in the presence of p-toluenesulfonic acid (p-TsOH) to form synthetically viable triazolylacetates in good to high yields. Additionally, the nitroallylic acetates
Organocatalytic Cascade Reactions: Towards the Diversification of Hydroisochromenes and Chromenes through Two Different Activation Modes
作者:David Cruz Cruz、Rasmus Mose、Clarisa Villegas Gómez、Stine V. Torbensen、Martin S. Larsen、Karl Anker Jørgensen
DOI:10.1002/chem.201403505
日期:2014.9.1
The organocatalytic enantioselective syntheses of functionalized hydroisochromenes and chromenes by trienamine‐mediated [4+2]‐cycloaddition/nucleophilic ring‐closing and iminium‐ion/aminal‐mediated oxa‐Michael/Michael/nucleophilic ring‐closing with 2‐nitroallylic alcohols are presented. The corresponding cycloadducts, with up to five stereocenters, are formed in good yield and excellent enantioselectivities
介绍了由三烯胺介导的[4 + 2]-环加成/亲核开环和亚胺离子/氨基介导的氧杂-Michael / Michael /亲核与2-硝基烯丙醇成环的功能化氢异色酮和色烯的有机催化对映选择性合成。 。形成具有最多五个立体中心的相应的环加合物,具有良好的产率和优异的对映选择性。已经证明了所得产物的合成应用。