The total synthesis of ritipenems. Construction of penem thiazoline ring by incorporation of two 2C units of glycolic acid.
摘要:
Short syntheses of Ritipenem Acoxyl 1a and Ritipenem 1b are reported. The syntheses start from (R)-4-acetoxy-(S)-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]azetidin-2-one 3 and are based on the incorporation of two 2C units obtained by manipulation of glicolyc acid 4.
FUNCTIONALLY-MODIFIED OLIGONUCLEOTIDES AND SUBUNITS THEREOF
申请人:Sarepta Therapeutics, Inc.
公开号:US20140330006A1
公开(公告)日:2014-11-06
Functionally-modified oligonucleotide analogues comprising modified intersubunit linkages and/or modified 3′ and/or 5′-end groups are provided. The disclosed compounds are useful for the treatment of diseases where inhibition of protein expression or correction of aberrant mRNA splice products produces beneficial therapeutic effects.
The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
[EN] NITRIC OXIDE RELEASING PRODRUGS OF THERAPEUTIC AGENTS<br/>[FR] PROMÉDICAMENTS D'AGENTS THÉRAPEUTIQUES LIBÉRANT DE L'OXYDE NITRIQUE
申请人:SATYAM APPARAO
公开号:WO2014111957A1
公开(公告)日:2014-07-24
The present invention relates to nitric oxide releasing prodrugs of known drugs or therapeutic agents wherein the drug or therapeutic agents contain at least one carboxylic acid group. The invention also relates to processes for the preparation of these nitric oxide releasing prodrugs, to pharmaceutical compositions containing them and to methods of using these prodrugs.
Hydroxylated nebivolol metabolites increase NO release from human endothelial cell preparations in a concentration dependent fashion following acute administration. In addition, hydroxylated nebivolol metabolites, including but not limited to 4-hydroxy-6,6′difluoro-, 4-hydroxy-5-phenol-6,6′difluoro-, and 4-hydroxy-8-pheno-6,6′difluoro-, have the ability to increase the capacity for NO release in human endothelial cells following chronic administration. This invention provides hydroxylated nebivolol metabolites and compositions comprising nebivolol and/or at least one hydroxylated metabolite of nebivolol and/or at least one additional compound used to treat cardiovascular diseases or a pharmaceutically acceptable salt thereof. In addition, this invention provides methods of treating and/or preventing vascular diseases by administering at least one hydroxylated metabolite of nebivolol that is capable of releasing a therapeutically effective amount of nitric oxide to a targeted site affected by the vascular disease. Also, this invention is directed to the treatment and/or prevention of migraine headaches administering at least one hydroxylated metabolite of nebivolol. This invention may also be used in conjunction with or as a single treatment of metabolic syndrome disorders.
Nitric Oxide Releasing Prodrugs of Therapeutic Agents
申请人:SATYAM Apparao
公开号:US20110263526A1
公开(公告)日:2011-10-27
The present invention relates to nitric oxide releasing prodrugs of known drugs or therapeutic agents which are represented herein as compounds of formula (I) wherein the drugs or therapeutic agents contain one or more functional groups independently selected from a carboxylic acid, an amino, a hydroxyl and a sulfhydryl group. The invention also relates to processes for the preparation of the nitric oxide releasing prodrugs (the compounds of formula (I)), to pharmaceutical compositions containing them and to methods of using the prodrugs.