β‐Ketoesters as Mono‐ or Bisnucleophiles: A Concise Enantioselective Total Synthesis of (−)‐Englerin A and B
作者:Lei Guo、Bernd Plietker
DOI:10.1002/anie.201900401
日期:2019.6.17
A short enantioselective totalsynthesis of englerin A, a guaiane sesquiterpene with significant in vitro antitumor activity, is reported. Key features of this totalsynthesis are an organocatalytic asymmetric decarboxylative aldol reaction, a neighboring‐group‐participating [4+3] cycloaddition, a novel one‐pot Heck coupling/regioselective 1,4‐hydrosilylation/Tamao–Fleming oxidation cascade, and a
NOVEL DICARBOXYLIC ACID LINKED AMINO ACID AND PEPTIDE PRODRUGS OF OPIOIDS AND USES THEREOF
申请人:Franklin Richard
公开号:US20100286186A1
公开(公告)日:2010-11-11
The present invention concerns dicarboxylic acid linked amino acid and peptide prodrugs of opioid analgesics and pharmaceutical compositions containing such prodrugs. Methods for providing pain relief, decreasing the adverse GI side effects of the opioid analgesic and increasing the bioavailability of the opioid analgesic with the aforementioned prodrugs are also provided. In one embodiment, prodrugs having the amino acid side chains of valine, leucine, isoleucine and glycine; and mono-, di- and tripeptides thereof are provided.
PRODRUGS OF GUANFACINE
申请人:Franklin Richard
公开号:US20120178666A1
公开(公告)日:2012-07-12
Prodrugs of guanfacine with amino acids or short peptides, pharmaceutical compositions containing such prodrugs and a method for providing therapeutic benefit in the treatment of ADHD/ODD (attention deficient hyperactivity disorder and oppositional defiance disorder) with guanfacine prodrugs are provided herein. Additionally, methods for minimizing or avoiding the adverse gastrointestinal side effects associated with guanfacine administration, as well as improving the pharmacokinetics of guanfacine are provided herein.
METHODS AND COMPOSITIONS FOR PREVENTING OPIOID ABUSE
申请人:Thottathil John K.
公开号:US20170151232A1
公开(公告)日:2017-06-01
Abuse-resistant opioid compounds, drug delivery systems, pharmaceutical compositions comprising an opioid covalently bound to a chemical moiety are provided. Methods of delivering an active ingredient to a subject and methods of preventing opioid abuse are also provided.