[EN] SUBSTITUTED TETRAHYDROPYRAN SPIRO PYRROLIDINONE AND PIPERIDINONE, PREPARATION AND THERAPEUTIC USE THEREOF [FR] PYRROLIDINONE ET PIPÉRIDINONE SPIRO À SUBSTITUTION DE TÉTRAHYDROPYRANNE, SA PREPARATION ET SON UTILISATION THÉRAPEUTIQUE
[EN] SUBSTITUTED PHENYL CYCLOALKYL PYRROLIDINE (PIPERIDINE) SPIROLACTAMS AND AMIDES, PREPARATION AND THERAPEUTIC USE THEREOF<br/>[FR] SPIROLACTAMES ET AMIDES DE PHÉNYLCYCLOALKYLPYRROLIDINE (PIPÉRIDINE) SUBSTITUÉS, LEUR PRÉPARATION ET LEUR UTILISATION THÉRAPEUTIQUE
申请人:SANOFI SA
公开号:WO2011143150A1
公开(公告)日:2011-11-17
The present invention discloses and claims respectively a series of substituted phenyl cycloalkyl pyrrolidine (piperidine) spirolactams and amides of formula (I) (Ia) and formula (Ib) as described herein. More specifically, the compounds of this invention are modulators of H3 receptors and are, therefore, useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases modulated by H3 receptors including diseases associated with the central nervous system. Additionally, this invention also discloses methods of preparation of substituted phenyl cycloalkyl pyrrolidine (piperidine) spirolactams and amides of formula (Ia) and (Ib), and intermediates therefor.
[EN] SUBSTITUTED N-HETEROARYL SPIROLACTAM BIPYRROLIDINES, PREPARATION AND THERAPEUTIC USE THEREOF<br/>[FR] BIPYRROLIDINES N-HÉTÉROARYL SPIROLACTAME SUBSTITUÉES, PROCÉDÉ DE PRÉPARATION ET USAGE THÉRAPEUTIQUE ASSOCIÉS
申请人:SANOFI SA
公开号:WO2011143148A1
公开(公告)日:2011-11-17
The present invention discloses and claims a series of substituted N-heteroaryl spirolactam bipyrrolidines of formula ( Wherein R1, R2, Q1, Q2, Q3, Q4, X, m, n, p and s are as described herein. More specifically, the compounds of this invention are modulators of H3 receptors and are, therefore, useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases modulated by H3 receptors including diseases associated with the central nervous system. Additionally, this invention also discloses methods of preparation of substituted N-heteroaryl spirolactam bipyrrolidines of formula (I) and intermediates therefor.
Asymmetric “Clip-Cycle” Synthesis of Pyrrolidines and Spiropyrrolidines
作者:Christopher J. Maddocks、Kristaps Ermanis、Paul A. Clarke
DOI:10.1021/acs.orglett.0c03090
日期:2020.10.16
increasingly important scaffolds in drug discovery programs, is reported. Cbz-protected bis-homoallylic amines were activated by “clipping” them to thioacrylate via an alkene metathesis reaction. Enantioselective intramolecular aza-Michael cyclization onto the activated alkene, catalyzed by a chiral phosphoric acid, formed a pyrrolidine. The reaction accommodated a range of substitutions to form 2,2- and 3,3-disubstituted
Enantioselective “clip-cycle” synthesis of di-, tri- and spiro-substituted tetrahydropyrans
作者:Khadra Alomari、N. Sai Pavan Chakravarthy、Bastien Duchadeau、Kristaps Ermanis、Paul A. Clarke
DOI:10.1039/d2ob00023g
日期:——
ω-Unsaturated alcohols were “clipped” via alkene metathesis to a thioester activating group, which was followed by a chiral phosphoric acid catalyzed intramolecular oxa-Michael cyclization to yield tetrahydropyrans and spiro-tetrahydropyrans with excellent enantioselectivity. The mechanism and origin of the enantioselectivity was probed by DFT calculations and kinetic isotope studies, where there was
Tuning the Reactivity of Alkoxyl Radicals from Cyclization to 1,2-Silyl Transfer: Stereoselective Synthesis of β-Substituted Cycloalcohols
作者:Xingyi He、Yunlong Zhao、Zeguo Zhang、Xiao Shen
DOI:10.1021/acs.orglett.2c00428
日期:2022.3.18
Herein, we report a radical strategy for diastereoselective construction of β-substituted cyclopentanols and cyclobutanols. The success of the reaction is attributed to the favorable radical 1,2-silyl transfer over the cyclization of alkoxy radicals to the olefins. The reaction shows broad substrate scope and wide functional-group tolerance. The synthetic potential of the methodology was demonstrated