Prodrug derivatives of acids using alcohols with homotopic hydroxy groups and methods for their preparation and use
申请人:deLong A. Mitchell
公开号:US20070254920A1
公开(公告)日:2007-11-01
This invention relates to novel homotopic prodrugs and medicaments and methods for their preparation, testing and use. In one embodiment, the homotopic prodrug has the general formula
wherein
is a biologically-active moiety comprising a carboxylic acid functional group, and R
b
is a homotopically-symmetrical alcohol bonded to the biologically-active moiety through the carboxylic acid functional group to form an ester linkage, as well as optical isomers, enantiomers, pharmaceutically acceptable salts, biohydrolyzable amides, esters, and imides thereof and combinations thereof.
这项发明涉及新型同位素前药、药物以及其制备、测试和使用方法。在一个实施例中,同位素前药具有一般公式
其中
是包含羧酸官能团的生物活性基团,而 R
b
是通过羧酸官能团与生物活性基团形成酯键的同位对称醇,以及其光学异构体、对映异构体、药用可接受盐、生物水解酰胺、酯、亚酰胺及其组合物。
Catalytic Asymmetric Synthesis of Chiral Allylic Esters
作者:Jeffrey S. Cannon、Stefan F. Kirsch、Larry E. Overman
DOI:10.1021/ja106685w
日期:2010.11.3
A broadly useful catalytic enantioselective synthesis of branched allylicesters from prochiral (Z)-2-alkene-1-ols has been developed. The starting allylicalcohol is converted to its trichloroacetimidate intermediate by reaction with trichloroacetonitrile, either in situ or in a separate step, and this intermediate undergoes clean enantioselective S(N)2' substitution with a variety of carboxylic acids
Renin inhibitory peptides containing an N-alkyl-histidine moiety
申请人:The Upjohn Company
公开号:US04880781A1
公开(公告)日:1989-11-14
The present invention provides novel renin-inhibiting peptides and novel processes and intermediates for the preparation of both novel and known renin-inhibiting peptide analogs. Such inhibitors are useful for the diagnosis and control of renin-dependent hypertension.
Catalytic Asymmetric Rearrangement of Allylic <i>N</i>-Aryl Trifluoroacetimidates. A Useful Method for Transforming Prochiral Allylic Alcohols to Chiral Allylic Amines
作者:Larry E. Overman、Carolyn E. Owen、Mary M. Pavan、Christopher J. Richards
DOI:10.1021/ol0271786
日期:2003.5.1
useful method for the conversion of prochiral allylic alcohols to chiral allylic amines of high enantiopurity is reported. N-(4-Methoxyphenyl)trifluoroacetimidates are excellent substrates for the palladium(II)-catalyzed allylicimidaterearrangement as the allylic trifluoroacetamide products can be deprotected in two steps to provide chiral nonracemic allylic amines. Di-mu-chlorobis[(eta(5)-(S)-(pR)-
A method for the synthesis of alpha-chiral allylboronates featuring the Cu(I)-catalyzed enantioselective substitution of readily available allylic carbonates with a diboron is described. Using this method, various alpha-chiral allylboronates, including functionalized allylboronates, were successfully synthesized, with high enantiomeric purity.