- Design and synthesis of (aza)indolyl maleimide-based covalent inhibitors of glycogen synthase kinase 3β
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As an important kinase in multiple signal transduction pathways, GSK-3β has been an attractive target for chemical probe discovery and drug development. Compared to numerous reversible inhibitors that have been developed, covalent inhibitors of GSK-3β are
- Yang, Zhimin,Liu, Hui,Pan, Botao,He, Fengli,Pan, Zhengying
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supporting information
p. 4127 - 4140
(2018/06/12)
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- Isoindolone derivatives, their preparation and the pharmaceutical compositions containing them
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This invention relates to isoindolone derivatives of general formula (I) in which the radicals R are hydrogen atoms or together form a bond, the symbols R'' are phenyl radicals which can be substituted by a halogen atom or a methyl radical in position 2 or 3, X is an oxygen or sulphur atom or a radical N--R 3, R 3 being H, optionally substituted alkyl or dialkylamino, R 1 is optionally substituted phenyl or cyclohexadienyl, naphthyl or a heterocycle and R 2 is H, halogen, OH, alkyl, amionoalkyl, alkylaminoalkyl, dialkylaminoalkyl, alkoxy, alkylthio, acyloxy, carboxyl, optionally substituted alkoxycarbonyl, benzyloxycarbonyl, amino or acylamino, in their (3aR,7aR) forms or in the (3aRS,7aRS) form or their mixtures, and if appropriate their salts where such exist, and their preparation.The new derivatives according to the invention are particularly valuable as antagonists of substance P. STR1
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- Preparation of indoles and oxindoles from N-(tert-butoxycarbonyl)-2-alkylanilines
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Treatment of dilithiated N-(tert-butoxycarbonyl)anilines 1 with dimethylformamide or carbon dioxide furnishes intermediates 3, 5, that are easily converted to N-(tert-butoxycarbonyl)indoles 4 and oxindoles (indol-2(3H)-ones, 7), respectively. Condensation of dilithiated 1 with N-methoxy-N-methylamides provides ketones 9 which are cyclized upon trifluoroacetic acid treatment to either 2-substituted 1-(tert-butoxycarbonyl)indoles 10 or 2-substituted indoles 11 depending on the reaction time. This general methodology has been applied to efficient synthesis of 1,2-alkyl-bridged indoles 12, 1,3,4,5-tetrahydrobenz[c,d]indole (16), 2a,3,4,5-tetrahydrobenz[c,d]indol-2(1H)-one (18), and 1-(tert-butoxycarbonyl)1H-pyrrolo[2,3-b]pyridine (21).
- Clark,Muchowski,Fisher,Flippin,Repke,Souchet
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p. 871 - 878
(2007/10/02)
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