3,5-Diaminobenzotrifluoride may be produced, in a single step, by reacting 4-chloro-3,5-dinitrobenzotrifluoride, in a suitable solvent, with hydrogen gas, in the presence of a catalyst comprising palladium on a suitable carrier.
[EN] AGONISTS IN THE COSTIMULATION OF TcR/CD3-INDUCED T-LYMPHOCYTES<br/>[FR] AGONISTES UTILES DANS LA COSTIMULATION DE LYMPHOCYTES T INDUITS PAR TcR/CD3
申请人:RADOPATH LIMITED
公开号:WO1997034593A1
公开(公告)日:1997-09-25
(EN) 2-Chloro-5-nitrobenzoic acid and various other chloro and nitro substitute benzoic acid derivatives are disclosed for administration in tablet or injectable solution form for treatment of HIV infection. The active compounds have surprising efficacy in various treatment regimes and have particular application to effect regression of lesions in HIV-related Kaposi's sarcoma. The compounds act as costimulators of CD3-triggered T-lymphocyte proliferation to increase the immunological challenge to the retrovirus presented by the natural immune system.(FR) On décrit l'acide 2-chloro-5-nitrobenzoïque ainsi que plusieurs autres dérivés de l'acide benzoïque, à substitution chloro et nitro, destinés à être administrés sous forme de comprimés ou de solution injectable, dans le traitement de l'infection à VIH. Ces composés actifs possèdent une efficacité surprenante dans divers schémas de traitement et ils sont particulièrement destinés à faire régresser des lésions dans la maladie de Kaposi associée au VIH. Ces composés agissent en tant que costimulateurs de la prolifération des lymphocytes T déclenchée par CD3, afin d'augmenter le défi immunologique engagé par le système immun naturel avec le rétrovirus.
Capture of aromatic carboxylate anion through second sphere coordination: Topological complementarity of [cis-Co(en)2(N3)2]+ and ions
作者:Rajni Sharma、Raj Pal Sharma、Paloth Venugopalan、Miguel Quirós、Juan M. Salas、J. Yu、Y. Du
DOI:10.1016/j.molstruc.2007.10.010
日期:2008.8
[cis-Co(en)(2)(N-3)(2)]C(7)H(3)ClNO4 center dot 1.25H(2)O (Cocnb) was synthesised and detailed packing analyses were undertaken to delineate the topological complementarity of [cis-Co(en)(2)(N-3)(2)](+) and a 2-chloro-4-nitro benzoate anion (cnb) for second sphere coordination in the crystal lattice. The complex was completely characterised by elemental analyses, spectroscopic studies (IR, UV/visible, H-1 and C-13 NMR). The compound crystallizes in the monoclinic (space group C2/c) with a = 21.9843(18), b = 8.7959(7), c = 23.0121(18) angstrom. beta = 116.426(1)degrees, V = 3984.9(6) angstrom(3), and Z = 8. In the crystal lattice, discrete ions of [cis-Co(en)(2)(N-3)(2)](+) and cnb are arranged in ...A-B-A-B... pattern (in both a and c directions of the lattice) forming columns of anions and cations. The anionic columns are pi stacked and are involved in extensive hydrogen bonding interaction. It appears that the topological feature of [cis-Co(en)(2)(N-3)(2)](+) is conducive for generating second sphere interactions with aromatic carboxylates. This strategy may be used as a viable method for the capture of aromatic carboxylate anions. (C) 2007 Elsevier B.V. All rights reserved.
Fast crystallising polyester compositions
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0021648B1
公开(公告)日:1984-03-21
AGONISTS IN THE COSTIMULATION OF TcR/CD3-INDUCED T-LYMPHOCYTES