[EN] BIOREVERSABLE PROMOIETIES FOR NITROGEN-CONTAINING AND HYDROXYL-CONTAINING DRUGS<br/>[FR] PRO-FRAGMENTS BIORÉVERSIBLES POUR MÉDICAMENTS CONTENANT DE L'AZOTE ET DE L'HYDROXYLE
申请人:BAIKANG SUZHOU CO LTD
公开号:WO2015081891A1
公开(公告)日:2015-06-11
Disclosed are promoieties of the following formula which can be used to form prodrugs of nitrogen-containing or hydroxyl-containing drug or a pharmaceutically active agent: (I) and pharmaceutical compositions comprising the prodrugs.
Triazolopeptides: chirospecific synthesis and cis/trans prolyl ratios of structural isomers
作者:Andreas Paul、Holger Bittermann、Peter Gmeiner
DOI:10.1016/j.tet.2006.07.007
日期:2006.9
As cis/trans prolyl isomerization plays a crucial role in various biological processes, peptide mimics capable of modifying the cis/trans Xaa-Pro ratio are of particular interest. A practical approach toward proline derived triazolopeptides employing [3+2] azide–alkyne cycloadditions as the key reaction step and the analysis of their cis/trans prolyl ratios are reported. Structural investigations indicated
Preparation of (R)-2-azidoesters from 2-((p-nitrobenzene)sulfonyl)oxy esters and their use as protected amino acid equivalents for the synthesis of di- and tripeptides containing D-amino acid constituents
作者:Robert V. Hoffman、Hwa-Ok Kim
DOI:10.1016/s0040-4020(01)92245-8
日期:1992.4
(R)-2-Azidoesters and their derived (R)-2-azido acids are readily prepared from common aminoacids by an inversion methodology that employs (S)-2-nosyloxyesters as key intermediates. The (R)-2- azidoesters can be used as protected aminoacid equivalents in peptide synthesis. Basic hydrolysis frees the carboxyl group. Triphenylphosphine/water is used to free the amine group. By these reactions a variety
Concise synthesis of <i>N</i>-phosphorylated amides through three-component reactions
作者:Yuan-Yuan Zhu、Tao Zhang、Linlin Zhou、Shang-Dong Yang
DOI:10.1039/d1gc03065e
日期:——
to look for concise and efficient methods for the synthesis of this unit. In this work, a new strategy was developed in which a one-pot synthesis of N-phosphorylated amides was achieved by a three-component reaction with carboxylic acids, phosphorus chlorides and azides under mild reaction conditions. To our knowledge, this is the first study in which this framework was constructed through a multicomponent
Chiral 1,5-disubstituted 1,2,3-triazoles – versatile tools for foldamers and peptidomimetic applications
作者:Anna Said Stålsmeden、Andrew J. Paterson、Imola Cs. Szigyártó、Linda Thunberg、Johan R. Johansson、Tamás Beke-Somfai、Nina Kann
DOI:10.1039/d0ob00168f
日期:——
1,4- and 1,5-Disubstitutedtriazole amino acid monomers have gained increasing interest among peptidic foldamers, as they are easily prepared via Cu- and Ru-catalyzed click reactions, with the potential for side chain variation. While the latter is key to their applicability, the synthesis and structural properties of the chiral mono- or disubstituted triazole amino acids have only been partially addressed