- COMPOSITION AND METHODS FOR INHIBITING MAMMALIAN STERILE 20-LIKE KINASE 1
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Disclosed herein are compounds, compositions, and methods of their use for the treatment of diabetes.
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Paragraph 00144
(2017/04/12)
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- Irreversible inhibition of epidermal growth factor receptor activity by 3-aminopropanamides
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Irreversible epidermal growth factor receptor (EGFR) inhibitors contain a reactive warhead which covalently interacts with a conserved cysteine residue in the kinase domain. The acrylamide fragment, a commonly employed warhead, effectively alkylates Cys797 of EGFR, but its reactivity can cause rapid metabolic deactivation or nonspecific reactions with off-targets. We describe here a new series of irreversible inhibitors containing a 3-aminopropanamide linked in position 6 to 4-anilinoquinazoline or 4-anilinoquinoline-3- carbonitrile driving portions. Some of these compounds proved to be as efficient as their acrylamide analogues in inhibiting EGFR-TK (TK = tyrosine kinase) autophosphorylation in A549 lung cancer cells. Moreover, several 3-aminopropanamides suppressed proliferation of gefitinib-resistant H1975 cells, harboring the T790M mutation in EGFR, at significantly lower concentrations than did gefitinib. A prototypical compound, N-(4-(3-bromoanilino)quinazolin-6- yl)-3-(dimethylamino)propanamide (5), did not show covalent binding to cell-free EGFR-TK in a fluorescence assay, while it underwent selective activation in the intracellular environment, releasing an acrylamide derivative which can react with thiol groups.
- Carmi, Caterina,Galvani, Elena,Vacondio, Federica,Rivara, Silvia,Lodola, Alessio,Russo, Simonetta,Aiello, Stefania,Bordi, Fabrizio,Costantino, Gabriele,Cavazzoni, Andrea,Alfieri, Roberta R.,Ardizzoni, Andrea,Petronini, Pier Giorgio,Mor, Marco
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p. 2251 - 2264
(2012/05/20)
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- IRREVERSIBLE EGFR INHIBITOR COMPOUNDS WITH ANTIPROLIFERATIVE ACTIVITY
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The invention concerns a derivative of Formule (VII) wherein R27, R28 are, independently of each other, hydrogen, (C1-C6)alkyl, (CH2)n- COOR33, (CH2)n-CONR33R34, (CH2)n-NR33R34 or (CH2)n-morpholine; or NR27R28 is — N N-R27 selected from morpholine, piperidine and Formula (VIII), where R33, R34 are, independently, hydrogen or (C1-C6)alkyl; R29 is hydrogen or (C1-C6)alkyl; R30 is hydrogen or -OR35, where R35 is (C1-C6)alkyl, (CH2)n-NR33R34 or (CH2)n-piperidine or (CH2)n-morpholine, where R33, R34 are, independently, hydrogen or (C1-C6)alkyl; Y is a nitrogen atom or a carbon atom substituted by a cyano group; R31 and R32 are, independently of each other, hydrogen, bromine, chlorine, fluorine, ethinyl or methyl; X is hydrogen, bromine, chlorine, fluorine or -O(CH2)n-Q; Q is an aryl or heteroaryl group, optionally substituted by one or more substituents selected, independently of each other, from hydrogen, chlorine, fluorine, the CF3 radical or - NO2; n is a whole number selected from 0, 1, 2, 3, 4, 5, or 6. The derivatives of the invention are used as irreversible EGFR inhibitors with antiproliferative activity.
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Page/Page column 16-17
(2010/08/04)
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