Diastereodivergent Access to Syn and Anti 3,4-Substituted β-Fluoropyrrolidines: Enhancing or Reversing Substrate Preference
摘要:
A practical diastereodivergent access to beta-fluoropyrrolidines with two adjacent stereocenters has been demonstrated, by either enhancing or completely reversing the substrate control, in the diastereoselective fluorination of a series of diverse pyrrolidinyl carbaldehydes using organocatalysis. Furthermore, enamine catalysis has been successfully utilized for kinetic resolution, obtaining a fluorinated beta-prolinol analogue with two adjacent tetrasubstituted chiral centers in 95% ee from a racemic substrate.
[EN] SPIRO COMPOUNDS AND METHODS FOR THE MODULATION OF CHEMOKINE RECEPTOR ACTIVITY [FR] COMPOSES SPIRO ET PROCEDES POUR LA MODULATION DE L'ACTIVITE DE RECEPTEUR DE CHIMIOKINE
Spirohydantoin compounds and methods for the modulation of chemokine receptor activity
申请人:Kong Chan Chun Laval
公开号:US20060014769A1
公开(公告)日:2006-01-19
Novel compounds represented by formula (I):
wherein R
1
, R
2
, R
3
and R
4
are as defined herein, and pharmaceutically acceptable salts, hydrates and solvates thereof, are useful for the modulation of CCR5 chemokine receptor activity.
Spiro compounds and methods for the modulation of chemokine receptor activity
申请人:Kong Chan Chun Laval
公开号:US20050070563A1
公开(公告)日:2005-03-31
Compounds of formula I
wherein X, Y, Z, W, R
1
and R
2
as defined herein, or pharmaceutically acceptable salts, hydrates or solvates thereof, are useful for the modulation of CCR5 chemokine receptor activity.
Novel Spirotropane Compounds And Methods For The Modulation Of Chemokine Receptor Activity
申请人:Chan Chun Kong Laval
公开号:US20090047238A1
公开(公告)日:2009-02-19
Compounds according to formula, (I):
wherein A, R
1
and R
2
are as defined herein, and the pharmaceutically acceptable salts, hydrates and solvates thereof are useful for the modulation of CCR5 chemokine receptor activity.
Spirotropane compounds and methods for the modulation of chemokine receptor activity
申请人:Virochem Pharma Inc.
公开号:US08076349B2
公开(公告)日:2011-12-13
Compounds according to formula (I):
wherein A, R1 and R2 are as defined herein, and the pharmaceutically acceptable salts, hydrates and solvates thereof are useful for the modulation of CCR5 chemokine receptor activity.
SPIROHYDANTOIN COMPOUNDS AND METHODS FOR THE MODULATION OF CHEMOKINE RECEPTOR ACTIVITY
申请人:CHAN CHUN KONG Laval
公开号:US20100286183A1
公开(公告)日:2010-11-11
Novel compounds represented by formula (I):
wherein R
1
, R
2
, R
3
and R
4
are as defined herein, and pharmaceutically acceptable salts, hydrates and solvates thereof, are useful for the modulation of CCR5 chemokine receptor activity.