[EN] CONJUGATES OF A CELL-BINDING MOLECULE WITH CAMPTOTHECIN ANALOGS [FR] CONJUGUÉS D'UNE MOLÉCULE DE LIAISON CELLULAIRE AVEC DES ANALOGUES DE CAMPTOTHÉCINE
solid-phase syntheses of artificial β-sheets 1−4, which mimic the structure and hydrogen-bonding patterns of protein β-sheets. In these compounds, molecular templates induce β-sheet structures in attached peptide strands. The templates consist of di- and triurea derivatives, which hold peptide and peptidomimetic strands in proximity, and β-strandmimics, which hydrogen bond to the peptide strands. The syntheses
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
申请人:Naccari Giancarlo
公开号:US20090118357A1
公开(公告)日:2009-05-07
Therefore the present invention relates specifically to the compounds of general formula (I), in which R
1
and R
2
, which may be identical or different, are selected from the group comprising H, —C
n
H
2n-1
, a linear or branched alkyl group having from 1 to 6 carbon atoms, or together form an aromatic or aliphatic ring with 5 or 6 atoms; R
3
is selected from —CO—CH
3
, —NHOH, —OH, —OR
6
in which R
6
is a linear or branched alkyl group having from 1 to 6 carbon atoms; R
4
is selected from H, a linear or branched alkyl group having from 1 to 6 carbon atoms, phenyl, benzyl, —CF
3
or —CF
2
CF
3
, vinyl or allyl; R
5
, R
7
, R
8
are hydrogen atoms; or R
3
and R
4
, R
4
and R
5
, or R
7
and R
8
together form a ring, fused to the benzene, aromatic or aliphatic ring with 5 or 6 atoms comprising from 1 to 2 heteroatoms selected independently from the group comprising N, O, and use thereof in the medical field.
The present invention provides 2,4-pyrimidinediamine compounds that inhibit the IgE and/or IgG receptor signaling cascades that lead to the release of chemical mediators, intermediates and methods of synthesizing the compounds and methods of using the compounds in a variety of contexts, including in the treatment and prevention of diseases characterized by, caused by or associated with the release of chemical mediators via degranulation and other processes effected by activation of the IgE and/or IgG receptor signaling cascades.
Trifluoroacetic Acid in 2,2,2-Trifluoroethanol Facilitates S<sub>N</sub>Ar Reactions of Heterocycles with Arylamines
作者:Benoit Carbain、Christopher R. Coxon、Honorine Lebraud、Kristopher J. Elliott、Christopher J. Matheson、Elisa Meschini、Amy R. Roberts、David M. Turner、Christopher Wong、Celine Cano、Roger J. Griffin、Ian R. Hardcastle、Bernard T. Golding
DOI:10.1002/chem.201304336
日期:2014.2.17
explore diverse sets of reaction conditions, and problems with product purification. In contrast, product isolation from TFA‐TFE reactions is straightforward: evaporation of the reaction mixture, basification and chromatography affords analytically pure material. A total of 45 examples are described with seven discrete heterocyclic scaffolds and 2‐, 3‐ and 4‐substitutedanilines giving product yields
The present invention provides 2,4-pyrimidinediamine compounds that inhibit the IgE and/or IgG receptor signaling cascades that lead to the release of chemical mediators, intermediates and methods of synthesizing the compounds and methods of using the compounds in a variety of contexts, including in the treatment and prevention of diseases characterized by, caused by or associated with the release of chemical mediators via degranulation and other processes effected by activation of the IgE and/or IgG receptor signaling cascades.