Substituted oxotremorine derivatives and pharmaceutical use thereof
申请人:American Cyanamid Company
公开号:US05356885A1
公开(公告)日:1994-10-18
This disclosure describes novel substituted oxotremorine derivatives of formula I having nitrogen, oxygen or sulfur groups and the prodrug forms of these derivatives. The compounds have cholinergic activity. Also disclosed are methods for treating diseases of the central nervous system in mammals employing the compounds, pharmaceutical preparations containing the compounds and the processes for the production of the compounds. ##STR1##
The synthesis and biochemical pharmacology of enantiomerically pure methylated oxotremorine derivatives
作者:Eugene J. Trybulski、Jing Zhang、Richard H. Kramss、Richard M. Mangano
DOI:10.1021/jm00075a007
日期:1993.11
Previous pharmacologicalstudies of methylated oxotremorine derivatives bearing substituents at the 3-, 4-, and 5-positions of the pyrrolidinone ring have been conducted using racemic mixtures, and not with optically active compounds. The synthesis and radioligand binding data of optically active, methylated oxotremorine derivatives at the 3- and 4-positions are described. There are significant pharmacological
Palladium-Catalyzed Asymmetric Allylic Alkylation of 2-Acylimidazoles as Ester Enolate Equivalents
作者:Barry M. Trost、Konrad Lehr、David J. Michaelis、Jiayi Xu、Andreas K. Buckl
DOI:10.1021/ja103771w
日期:2010.7.7
A broad range of highly enantioenriched 2-acylimidazoles are synthesized by palladium-catalyzed decarboxylative asymmetricallylicalkylation (DAAA) of 2-imidazolo-substituted enol carbonates. The enantioenriched 2-acylimidazole products can easily be converted to the corresponding carboxylic acid, ester, amide, and ketone derivatives with complete retention of the enantiopurity. The synthetic utility
Synthesis of the ABC Ring System of Azaspiracid. 2. A Systematic Study into the Effect of C<sub>16</sub> and C<sub>17</sub> Substitution on Bis-spirocyclization
作者:Rich G. Carter、David E. Graves、Melissa A. Gronemeyer、Gregory S. Tschumper
DOI:10.1021/ol026034o
日期:2002.6.1
[reaction: see text] A systematic study into the effect of C(16) and C(17) substitution on the stereochemical outcome of bis-spirocyclization to form the ABC ringsystem of azaspiracid is disclosed. Successful construction of the natural 10R,13R bis-spirocyclic stereochemistry has been accomplished on the C(16) benzyloxy-containing precursor.
Glycopeptide conjugates, and methods of making and using such conjugates are disclosed. Certain glycopeptide conjugates comprise tumor associated carbohydrate antigens and peptide epitopes. Certain glycopeptide conjugates comprise cyclic peptide scaffolds that display carbohydrate antigens in a clustered fashion. The immunogenicity of select glycopeptide conjugates is demonstrated.