130013-83-1Relevant articles and documents
Structural revision of halipeptins: Synthesis of the thiazoline unit and isolation of halipeptin C
Della Monica, Carmela,Randazzo, Antonio,Bifulco, Giuseppe,Cimino, Paola,Aquino, Maurizio,Izzo, Irene,De Riccardis, Francesco,Gomez-Paloma, Luigi
, p. 5707 - 5710 (2002)
The structural revision of the anti-inflammatory marine metabolites halipeptin A (1) and B (2) along with the isolation of the new related product halipeptin C (3) are reported. In particular, the heterocyclic portion of the molecule, incorrectly assigned as an oxazetidine ring, has now been characterised as a thiazoline unit by comparison of the spectral data of the natural products (1-3) with an appropriate synthetic model (10). GIAO calculated 13C NMR chemical shifts for oxazetidine and thiazoline model compounds provide additional support to the revised structure.
Design, synthesis and cytotoxic evaluation of a library of oxadiazole-containing hybrids
Camacho, Cristián M.,Pizzio, Marianela G.,Roces, David L.,Boggián, Dora B.,Mata, Ernesto G.,Bellizzi, Yanina,Barrionuevo, Elizabeth,Blank, Viviana C.,Roguin, Leonor P.
, p. 29741 - 29751 (2021/10/07)
The development of hybrid compounds led to the discovery of new pharmacologically active agents for some of the most critical diseases, including cancer. Herein, we describe a new series of oxadiazole-containing structures designed by a molecular hybridiz
1,2,4-OXADIAZOLE AND THIADIAZOLE COMPOUNDS AS IMMUNOMODULATORS
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Page/Page column 69, (2016/09/26)
The present invention relates to 1,2,4-oxadiazole compounds of formula (I) and their use to inhibit the programmed cell death (PD1) signaling pathway and/or for treatment of disorders by inhibiting an immunosuppressive signal induced by PD-1,PD-L1 or PD-L2.
One-pot synthesis of orthogonally protected dipeptide selenazoles employing Nα-amino selenocarboxamides and α-bromomethyl ketones
Madhu, Chilakapati,Panguluri, Nageswara Rao,Narendra,Panduranga,Sureshbabu, Vommina V.
, p. 6831 - 6835 (2015/01/09)
A simple and efficient protocol for the synthesis of selenazole containing dipeptidomimetics using Nα-amino selenocarboxamides and α-bromomethyl ketones is described. All the compounds made were isolated in good yields and fully characterized.
Total syntheses of bacillamide C and neobacillamide A; Revision of their absolute configurations
Martinez, Veronica,Davyt, Danilo
, p. 1572 - 1575 (2014/01/06)
The enantiospecific syntheses of both enantiomers of bacillamide C and neobacillamide A are described, along with the measurement of their optical activities, leading to the revision of the proposed absolute configurations of these natural products.
IMIDAZO[1,2-B][1,2,4]TRIAZINES AS C-MET INHIBITORS
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Page/Page column 11, (2011/09/20)
The present invention relates to imidazo[1,2-b][1,2,4]triazines that are inhibitors of c-Met and are useful in the treatment of c-Met associated diseases including cancer.
Discovery, biological evaluation, and structure-activity relationship of amidine based sphingosine kinase inhibitors
Mathews, Thomas P.,Kennedy, Andrew J.,Kharel, Yugesh,Kennedy, Perry C.,Nicoara, Oana,Sunkara, Manjula,Morris, Andrew J.,Wamhoff, Brian R.,Lynch, Kevin R.,MacDonald, Timothy L.
experimental part, p. 2766 - 2778 (2010/09/04)
Sphingosine 1-phosphate (S1P), a potent phospholipid growth and trophic factor, is synthesized in vivo by two sphingosine kinases. Thus these kinases have been proposed as important drug targets for treatment of hyperproliferative diseases and inflammation. We report here a new class of amidine-based sphingosine analogues that are competitive inhibitors of sphingosine kinases exhibiting varying degrees of enzyme selectivity. These inhibitors display KI values in the submicromolar range for both sphingosine kinases and, in cultured vascular smooth muscle cells, decrease S1P levels and initiate growth arrest.
COMPOSITIONS AND METHODS FOR INHIBITING SPHINGOSINE KINASE
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, (2009/12/27)
Amidine analogs that can inhibit the activity of sphingosine kinase 1 and sphingosine kinase 2 (SphK1 and SphK2) are provided. The compounds can prevent angiogenesis in tumor cells.
Synthesis of Boc-amino tetrazoles derived from α-amino acids
Sureshbabu, Vommina V.,Naik, Shankar A.,Nagendra
experimental part, p. 395 - 406 (2009/06/06)
A simple route for the synthesis of Boc-protected tetrazole analogs of amino acids starting from Nα-Boc amino acids has been described. The [2 + 3] cycloaddition of Boc-α-amino nitrile and sodium azide in the presence of a catalytic amount of zinc bromide yielded the desired tetrazoles in good yields and purity. All the compounds obtained have been characterized by 1H and 13C-NMR and mass spectral studies. Copyright Taylor & Francis Group, LLC.
Synthesis of 3,5-disubstituted 1,2,4-oxadiazoles as peptidomimetic building blocks
Jakopin, ?iga,Ro?kar, Robert,Dolenc, Marija Sollner
, p. 1465 - 1468 (2008/02/02)
Twelve new 1,2,4-oxadiazole based compounds have been synthesized. Their structures contain a protected amine and a carboxyl or an ester group, and thus serve as potential peptidomimetic building blocks. The synthetic route is simple and mild conditions are used so that the chirality of the starting amino acids is retained.