- BROMODOMAIN INHIBITORS
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The present invention provides for compounds of formula (I) wherein R1, R2, R3, R4, R6, X1, and X2 have any of the values defined in the specification, and pharmaceutically acceptable salts thereof, that are useful as agents in the treatment of diseases and conditions, including inflammatory diseases, cancer, and AIDS. Also provided are pharmaceutical compositions comprising compounds of formula (I).
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- New evidence against hydroxyl radicals as reactive intermediates in the thermal and photochemically enhanced fenton reactions
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During the oxidative degradation of 2,4-dimethylaniline (2,4-xylidine) by means of the H2O2/UV method, a series of hydroxylated aromatic amines are formed, this result confirming the role of the hydroxyl radical as an initiator of the oxidative chain reaction. Thermal or photochemically enhanced Fenton reactions in the presence of 2,4-dimethylaniline (2,4-xylidine) yield primarily 2,4-dimethylphenol as an intermediate product, the genesis of which may only be explained by an electron transfer mechanism. Experimental evidence for such a mechanism is presented, and values for the quantum yields of the photochemically enhanced reduction of iron(III) to iron(II) in aqueous solutions of 2,4-xylidine are given.
- Bossmann, Stefan H.,Oliveros, Esther,Goeb, Sabine,Siegwart, Silvia,Dahlen, Elizabeth P.,Payawan Jr., Leon,Straub, Matthias,Woerner, Michael,Braun, Andre M.
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p. 5542 - 5550
(2007/10/03)
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- Substituted ortho-aminophenols, process for preparing them and their use for the oxidatin dyeing of keratinous fibres
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5-Substituted ortho-aminophenols of formula: STR1 in which: R1 denotes a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; and R2 denotes, independently of R1, an alkyl radical having 1 to 4 carbon atoms, an alkoxy radical having 1 to 4 carbon atoms or a benzyl radical; the addition salts with an acid and the phenates, and dyeing composition containing a compound of formula (I) or a salt or a phenate of such a compound. The 5-substituted ortho-aminophenols enable hair to be dyed in a rich spectrum of hues having good durability.
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