Diastereoselective Cobalt-Mediated [2 + 2 + 2] Cycloadditions of Substituted Linear Enediynes Phosphine Oxides: Scope and Limitations
作者:Franck Slowinski、Corinne Aubert、Max Malacria
DOI:10.1021/jo026212r
日期:2003.1.1
Variously substitutedlinearenediynes phosphines oxides possessing the double bond at either the terminal or internal position and with the phosphine oxide appended onto the alkyne or the alkene terminus have been prepared. Their cobalt(I)-mediated cyclizations produce the eta(4)-complexed tricyclic compounds in high yields. The endo/exo selectivity depends on both the position of the phosphine oxide
preparation of substitutedlinearenediyneesters bearing the double bond either at the terminal or at internal position and the ester substituent either at the alkyne or at the alkene terminus is presented. Their cobalt(I)-mediated [2+2+2] cyclizations produce the η4-complexed tricyclic compounds in very good yields. The endo/exo selectivity depends on the position of the ester in the enediyne, but the
Improvement of the diastereoselectivity of the cobalt-mediated [2+2+2] cycloaddition of substituted linear enediynes
作者:Franck Slowinski、Corinne Aubert、Max Malacria
DOI:10.1016/s0040-4039(98)02483-6
日期:1999.1
The level of the diastereoselectivity of the cobalt-mediated [2+2+2] cyclization of linearenediynes was improved compared to that reported in the literature by substituting the triple or the double bond with ester, phosphine oxide or sulfoxide groups.
Lipid Nanoparticles for Delivery of Nucleic Acids and Methods of Use Thereof
申请人:Akagera Medicines, Inc.
公开号:US20220411394A1
公开(公告)日:2022-12-29
The present disclosure provides for improved compositions of ionizable lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids are engineered with improved stability to oxidative degradation while in storage, while retaining high transfection activity or potency in cells. These lipids are designed to be biodegradable, thus improving the tolerability of nanoparticles formed with them in vivo. In addition, targeting of these nanoparticles in a highly specific manner to dendritic cells is provided for through inclusion of antibody conjugates directed against cell surface receptors.
[EN] LIPID NANOPARTICLES FOR DELIVERY OF NUCLEIC ACIDS, AND RELATED METHODS OF USE<br/>[FR] NANOPARTICULES LIPIDIQUES UTILISÉES POUR L'ADMINISTRATION D'ACIDES NUCLÉIQUES, ET MÉTHODES D'UTILISATION ASSOCIÉES
申请人:[en]AKAGERA MEDICINES, INC.
公开号:WO2022115645A1
公开(公告)日:2022-06-02
The present disclosure provides for improved compositions of ionizable lipid nanoparticles for the delivery of therapeutic nucleic acids to cells. Cationic ionizable lipids are engineered with improved stability to oxidative degradation while in storage, while retaining high transfection activity or potency in cells. These lipids are designed to be biodegradable, thus improving the tolerability of nanoparticles formed with themin vivo. In addition, targeting of these nanoparticles in a highly specific manner to dendritic cells is provided for through inclusion of antibody conjugates directed against cell surface receptors.