摘要:
Die Erfindung betrifift substituierte Prop-2-in-1-ol- und Prop-2-en-1-ol-Derivate der allgemeinen Formel (I),
wobei die Reste R 1 , R 2 , R 3 , R 4 , R 5 , [X-Y] und Q die in der Beschreibung angegebenen Definitionen besitzen, Verfahren zu deren Herstellung und ihre Verwendung zur Steigerung der Stresstoleranz in Pflanzen gegenüber abiotischem Stress, sowie zur Stärkung des Pflanzenwachstums und/oder zur Erhöhung des Pflanzenertrags.
摘要:
The present invention describes a process for the direct preparation of methyl p-vinylbenzoate from methyl p-formylbenzoate using keten in the presence of potassium acetate. The chief products obtained from the process are about a five to two ratio of methyl p-vinylbenzoate to p-carbomethoxycinnamic acid. The latter may be thermally decarboxylated, especially in the presence of copper powder, to produce additional quantities of methyl p-vinylbenzoate. Methyl p-vinylbenzoate may further undergo hydrolysis to form p-vinyl benzoic acid. Both methyl p-vinyl benzoate and p-vinyl benzoic acid may be polymerized with ethylenically unsaturated monomers to form useful latex compositions of the present invention.
摘要:
A process is described for preparing aromatic vinyl compounds of general formula (I)
Ar⁅CH=CH 2 ] n (I)
which is characterised in that an aromatic acetylene compound of general formula (II)
Ar⁅C≡CH] n (II)
is selectively hydrogenated at the triple bond on a noble metal catalyst. This process permits ease of access to functional aromatic vinyl compounds. It makes it possible to prepare technically pure products without expensive process measures.
摘要:
Herstellung von aromatischen Vinylverbindungen der allgemeinen Formel I
Ar―CH=CHR I
in der Ar einen aromatischen Rest bedeutet und R für Wasserstoff, C₁-C₄-Alkyl oder einen Phenyl- oder substituierten Phenylrest steht, indem man einen Alkohol der Formel II
Ar―CH₂OH II
oder einen Ester der Formel III
in der R' für Wasserstoff oder C₁-C₄-Alkyl steht, in wäßriger Lösung mit einem Triarylphosphin und einer starken Säure und danach in Gegenwart einer Mineralbase mit einem Aldehyd der Formel IV
摘要:
New RAR selective retinoid agonists of formula (I) wherein the symbols are as defined in the specification, and pharmaceutically active salts of carboxylic acids of formula (I), further the invention relates to the use of such retinoic acid receptor agonists, particularly retinoic acid receptor η(RARη) selective agonists for the treatment of emphysema and associated pulmonary diseases, as well as for the therapy and prophylaxis of dermatological disorders, for the therapy and prophylaxis of malignant and premalignant epithelial lesions, tumours and precancerous changes of the mucous membrane in the mouth, tongue, larynx, oesophagus, bladder, cervix and colon.
摘要:
A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are disclosed. The aromatic carboxylic acid and the acid halide derivative thereof have structures represented general formulae (1) and (2), respectively, and can be efficiently produced from a dialkyl ester derivative of isophthalic acid and an acetylene derivative in accordance with the disclosed process comprising specific steps.
In the above formulae, A represents: - C≡C-R 1 or (R 1 represents hydrogen atom, an alkyl group or an aromatic group, R 2 represents an alkyl group or an aromatic group) and X represents a halogen atom.
摘要:
Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing Chrysamine G and derivatives thereof and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
摘要翻译:淀粉样蛋白结合它们是含有Chrysamine的G衍生物,药物组合物的化合物,并且使用搜索的化合物的方法,以确定体内阿尔茨海默氏脑和诊断淀粉样变性,:如唐氏综合征,其特征等病理状态下进行说明。 使用搜索的组合物,以防止在淀粉样变性相关的病症细胞变性和淀粉样诱导的毒性含Chrysamine G和它们的衍生物的药物组合物和方法,以便说明。 因此利用Chrysamine G ^衍生物染色或检测活检或死后组织淀粉样蛋白沉积物的方法被描述。 因此利用Chrysamine G ^衍生物量化活检和死后组织匀浆中淀粉样蛋白沉积物的方法被描述。
摘要:
This invention relates to new RAR selective retinoid agonists of formula (I) wherein the symbols are as defined in the specification to their pharmaceutically acceptable salts, individual isomers or to a racemic or non-racemic mixture; to pharmaceutical compositions containing them, and to methods for their use as therapeutic agents.