Kinetic Resolution of α-Acetoxy N-Acyl Oxazolidinethiones by a Chiral O-Nucleophilic Acyl Transfer Catalyst
摘要:
The kinetic resolution of alpha-acetoxy N-acyl oxazolidinethiones using the chiral, nonracemic O-nucleophilic acyl transfer catalyst 8 is described. The reaction proceeds on a variety of substrates in excellent yields, with s-factors ranging from 17 to 31.
Efficient oxidation of phenyl groups to carboxylic acids with ruthenium tetraoxide. A simple synthesis of (R)-.gamma.-caprolactone, the pheromone of Trogoderma granarium
Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.
[EN] AZACYCLOSTEROID HISTAMINE-3 RECEPTOR LIGANDS<br/>[FR] LIGANDS DE RECEPTEUR H3 DE L'HISTAMINE AZACYCLOSTEROIDE
申请人:ABBOTT LAB
公开号:WO2005100377A1
公开(公告)日:2005-10-27
Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.
Amino acids derivatives, the process for their preparation and their
申请人:Societe Civile Bioprojet
公开号:US05846956A1
公开(公告)日:1998-12-08
Amino acid derivatives of formula (Ia) and (Ib) and pro-drugs thereof containing a group responsible for chelating the zinc atom of enkephalinase and angiotensin convertase enzymes are disclosed as inhibitors of these enzymes.
Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.