Abstract:
In a retro-Diels-Alder reaction the starting cycloadduct is protected by -OH or -OP groups to form a desired benzene derivative or heteroaromatic compound, with the concomitant elimination of a dioxolene species. The protecting groups P are preferably comprised in a cyclic thiocarbonate or cis-isopropyldienedioxy group. The cycloadduct may be prepared by Diels-Alder cycloaddition of an acetylenic dienophile to a cyclohexadiene-cis-diol, and the cyclohexadiene may be formed by biological oxidation of an arene. The process allows desired aromatised products to be produced in uniformly high yields and the reaction is generally initiated at lower temperatures than known methods of synthesis which evolve ethylene. The by-products are usually non-volatile and may spontaneously polymerise.
Abstract:
The invention concerns novel bicyclic cyclopentane-1,3-dione derivatives of formula (I), in which A, B, B', G, Q, X, Y and Z have the meanings indicated in the description, a method of producing said derivatives and their use as pest-control agents and herbicides.
Abstract:
The present invention relates to heteroaromatic chalcone derivatives, particularly the compounds of formula (I) as described and defined herein, pharmaceutical compositions comprising these compounds, and their medical use, including their use in the treatment or prevention of cancer and, in particular, in the treatment or prevention of hematologic malignancies.
Abstract:
In a retro-Diels-Alder reaction the starting cycloadduct is protected by -OH or -OP groups to form a desired benzene derivative or heteroaromatic compound, with the concomitant elimination of a dioxolene species. The protecting groups P are preferably comprised in a cyclic thiocarbonate or cis-isopropyldienedioxy group. The cycloadduct may be prepared by Diels-Alder cycloaddition of an acetylenic dienophile to a cyclohexadiene-cis-diol, and the cyclohexadiene may be formed by biological oxidation of an arene. The process allows desired aromatised products to be produced in uniformly high yields and the reaction is generally initiated at lower temperatures than known methods of synthesis which evolve ethylene. The by-products are usually non-volatile and may spontaneously polymerise.
Abstract:
Compounds of formula I, uses as crosslinking agents or curing agents thereof, and resins obtained by using the compounds as crosslinking agents.
Abstract:
This invention relates to compounds of the Formula (I):(Chemical formula should be inserted here as it appears on abstract in paper form)(I)or a pharmaceutically acceptable salt, solvate or isomer thereof, which can be useful for the treatment of diseases or conditions mediated by MMPs, TNF-alpha or combinations thereof.
Abstract:
The present invention relates to a antibiotically active compounds characterized by general formula (I), wherein X1, BB, BC, BD, BE and X2 are building blocks with D1, D2, D3, D4 or D5 being linkers which comprise carbon, sulphur, nitrogen, phosphor and/or oxygen atoms and which are covalently connecting the moities BA and BB, BB and BC, BC and BD, BD and BE and BE and BF, respectively, and wherein in particular the building block BC comprises an amino acid derivative. The invention relates further to said compounds for use in a method of treatment of diseases, in particular for use in a method of treatment of bacterial infections.
Abstract:
The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α, β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α, β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active cyclic nitrogen-containing compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same.
Abstract:
L'invention concerne des composés de formule (I) dans laquelle Ar 1 représente un groupement aryle, hétéroaryle ou hétérocyclique; Ar 2 représente un groupement aryle ou hétéroaryle répondant à la formule (Ia) dans laquelle A représente un atome d'azote ou un atome de carbone éventuellement substitué par M 4 ; et M 1 , M 2 , M 3 ou M 4 , identiques ou différents, représentent un atome d'hydrogène, un atome d'halogène, un radical (C 1 -C 6 )alkyle, hydroxy, (C 1 -C 6 )alkoxy, cyano, (C 1 -C 6 )haloalkyle, (C 1 -C 6 )haloalkoxy, amino, N-(C 1 -C 6 )alkylamino, N,N-(C 1 -C 6 )dialkylamino, amino(C 1 -C 6 )alkyle, N-(C 1 -C 6 )alkylamino(C 1 -C 6 )alkyle ou N,N-(C 1 -C 6 )dialkylamino(C 1 -C 6 )alkyle; Y représente un atome d'oxygène ou un groupement NR; R représente un atome d'hydrogène, un groupement (C 1 -C 6 ) alkyle, (C 1 -C 6 )alkylcarbonyle; n représente un nombre entier entre 4 et 6; et D représente un atome de carbone ou un atome d'azote. Ainsi que leurs sels pharmaceutiquement acceptables, leur procédé de fabrication, les compositions pharmaceutiques les renfermant, ainsi que leur utilisation comme agents anti-néoplasiques et/ou inhibiteurs de la prolifération cellulaire.