摘要:
This invention relates to extracts of Pholidota Chinesis Lindl. the preparation methods and pharrriaceutical use thereof. The methods of extracting active compound from Pholidota Chinesis Lindl. incudes the following steps: 1) extracting the Pholidota Chinesis Lindl. by ethanol, concentrating at reduced pressure to make extractive; 2) ectracting the extractive in turn of n-butane, ethyl acetate, n-butanol; 3) directing the extractive of ethyl acetate through chromatography column, eluting by methanol;4) separating and purifying the elent collected in step 3) by high pressure liquid chromatography to get active compounds. The formula of the extracted active compound (3-10) is: (I); active compound (1) is: (II); active compound (2) is: (III). The compound or its salts, enantiomers, racemes, tautomers and physiologic functional derivates extracted from the Pholidota Chinesis Lindl. Are useful in production of the medicament for the treatment or prevention of inflammatory disease.
摘要:
A catalyst composition comprising trifluoromethanesulfonic acid (also referred to as triflic acid) and a sufficient quantity of a substance (also referred to as a retarder) to decrease but not eliminate the catalytic activity of the acid is disclosed. Also disclosed, is a method and composition for condensing a hydroxyaryl with a diene by use of the catalyst composition. The method is capable of producing condensates having: a mole ratio of 1 mole of the diene to one mole of the hydroxyaryl; one mole of diene to two moles of the hydroxyaryl as well as higher molecular weight products such as resins by changes in temperature, time of reaction, type and quantity of retarder and other variables.
摘要:
A lithographic printing plate precursor comprising an image- recording layer, said image -recording layer being photopolymerizable upon exposure to light having a wavelength of from 300 to 500 nm and containing a mixture of sensitizers.
摘要:
This invention relates to substituted phenylcyclopropane derivatives, which carry various substituents on the cyclopropane ring, to processes for their preparation, to pharmaceutical compositions containing them, and to methods for their use in the treatment of disease states, for example disease states associated with proteins that mediate cellular activity, for example by inhibiting tumour necrosis factor and/or by inhibiting cyclic AMP phosphodiesterase.
摘要:
This invention relates to extracts of Pholidota Chinesis Lindl. the preparation methods and pharrriaceutical use thereof. The methods of extracting active compound from Pholidota Chinesis Lindl. incudes the following steps: 1) extracting the Pholidota Chinesis Lindl. by ethanol, concentrating at reduced pressure to make extractive; 2) ectracting the extractive in turn of n-butane, ethyl acetate, n-butanol; 3) directing the extractive of ethyl acetate through chromatography column, eluting by methanol;4) separating and purifying the elent collected in step 3) by high pressure liquid chromatography to get active compounds. The formula of the extracted active compound (3-10) is: (I); active compound (1) is: (II); active compound (2) is: (III). The compound or its salts, enantiomers, racemes, tautomers and physiologic functional derivates extracted from the Pholidota Chinesis Lindl. Are useful in production of the medicament for the treatment or prevention of inflammatory disease.
摘要:
This invention relates to certain 1,4,4-(trisubstituted)cyclohex-1-ene dimers and related compounds which are useful in treating allergic and inflammatory diseases and for inhibiting the production of Tumor Necrosis Factor (TNF).
摘要:
An organic electroluminescent element comprising a dimeric stryryl compound represented by general formula (I) as the luminescent material, wherein D, D', E, E', F, F', G, G' and Q are each as defined in the specification. The dimeric styryl compound used is one prepared by bonding two molecules of a compound having a good luminescence efficiency and a desirable luminescence wavelength to each other via a divalent group which breaks a conjugated system without impairing the abilities of the compound to thereby increase the molecular weight (to dimerize) and improve the properties as thin film. Therefore this element is widely applicable as various display materials.
摘要:
A lithographic printing plate precursor comprising an image- recording layer, said image -recording layer being photopolymerizable upon exposure to light having a wavelenght of from 300 to 500 nm and containing a mixture of sensitizers.
摘要:
Cyano and carboxy derivatives of substituted styrenes of formula (I), in which Y is -COZ, -CN, or lower alkyl of 1 to 5 carbon atoms; Z is -OH, -NR R , -R , or -OR ; X, R , R , R , R , R , R , and R have the values given in the description are inhibitors of tumor necrosis factor alpha , nuclear factor kappa B, and phosphodiesterase and can be used to combat cachexia, endotoxic shock, retrovirus replication, asthma, and inflammatory conditions. A typical embodiment is 3,3-bis-(3,4-dimethoxyphenyl)acrylonitrile.
摘要:
Compounds of general formula (1) are described, wherein Y is a halogen atom or a group -OR , wherein R is an optionally substituted alkyl group; X is -O-, -S- or -N(R )-, where R is a hydrogen atom or an alkyl group; R is an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group; R and R , which may be the same or different, is each a group -(CH2)nAr, where Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms and n is zero or an integer 1, 2 or 3; R is a hydrogen atom or an optionally substituted alkyl group; and the salts, solvates, hydrates and N-oxides thereof. Compounds according to the invention are potent, selective and orally active PDE IV inhibitors and are useful in the prophylaxis and treatment of asthma and other diseases.
摘要翻译:描述通式(1)的化合物,其中Y是卤素原子或-OR 1基团,其中R 1是任选取代的烷基; X是-O - , - S-或-N(R 6) - ,其中R 6是氢原子或烷基; R 2是任选取代的烷基,烯基,环烷基或环烯基; R 3和R 4可以相同或不同,各自为 - (CH 2)nAr基团,其中Ar是任选含有一个或多个选自氧,硫或氮的杂原子的单环或双环芳基 原子和n为零或整数1,2或3; R 5是氢原子或任选取代的烷基; 及其盐,溶剂合物,水合物和N-氧化物。 根据本发明的化合物是有效的,选择性和口服活性的PDE IV抑制剂,并且可用于预防和治疗哮喘和其它疾病。