摘要:
Disclosed are compounds of formula (1) and pharmaceutically acceptable salts thereof:
wherein: R, and R 9 are independently phenyl, phenyl C 1-4 alkyl, phenyl C 2-4 alkenyl or pyridyl, the aromatic moiety optionally substituted by one, two or three of halogen, trifluoromethyl, C 1-4 alkoxy, C 1-4 alkyl, cyano, hydroxy, nitro, NR 10 R 11 or O 2 SNR 10 R 11 wherein R, o and R 11 are independently hydrogen or C 1-6 alkyl or together are C 3-6 polymethylene, or disubstituted at adjacent carbon atoms by C 1-2 alkylenedioxy; C 3-8 cycloalkyl; or aliphatic heterocyclyl having up to six ring atoms the heteroatom(s) being selected from oxygen, sulphur or nitrogen; m and n are independently integers of 0 to 3, such that m + n is 0 to 3; and R z and R 8 are independently hydrogen C 1-4 alkyl or phenyl C 1-4 alkyl, R 3 is C 1-4 alkyl optionally substituted by hydroxy or thiol or phenyl C 1-4 alkyl, or together with R 4 is C 3-6 polymethylene, R 4 is hydrogen, C 1-4 alkyl, phenyl C 1-4 alkyl or as defined with R 3 , or together with R 5 is -(CH 2 ) p -where p is an integer from 2 to 6 such that m + p is 3 to 6, R 6 is hydrogen, C 1-4 alkyl or as defined with R 4 , or together with R 6 is -(CH 2 ) q -where q is an integer from 2 to 6 such that n + q is 3 to 6, R 6 is hydrogen, C 1-4 alkyl, phenyl C 1-4 alkyl or as defined with R 5 , or together with R 7 is C 3-6 polymethylene, and R 7 is C 1-4 alkyl optionally substituted by hydroxy or thiol, phenyl C 1-4 alkyl or as defined with R 6 , in which any phenyl moiety in R 2 ,R 3 ,R 4 ,R 6 ,R 7 and R 8 is optionally substituted by one or two of halogen, trifluoromethyl, C 1-4 alkoxy or C 1-4 alkyl. Such compounds have been found to possess cardiovascular activity, in particular calcium antagonistic activity which indicates that they are of potential use in the treatment of angina.
摘要:
Die vorliegende Erfindung betrifft neue Aminotetralinderi vate der allgemeinen Formel in der A eine -CH₂-CH₂-, -CH=CH-, H-CO- oder -C₂-CO-Gruppe und B eine Methylen-, Carbonyl- oder Thiocarbonylgruppe oder A eine und B eine Methylengruppe, E eine gegebenenfalls durch eine Alkylgruppe substituierte geradkettige Alkylengruppe, eine 2-Hydroxy-n-propylen-, 2-Hydroxy-n-butylen- oder 3-Hydroxy-n-butylengruppe, R₁ ein Wasserstoff-, Fluor-, Chlor- oder Bromatom, eine Triflu ormethyl-, Nitro-, Amino-, Alkylamino-, Dialkylamino-, Alkyl-, Alkylthio-, Hydroxy-, Alkoxy- oder Phenylalkoxygruppe, R₂ ein Wasserstoff-, Chlor- oder Bromatom, eine Hydroxy-, Alk oxy-, Phenylalkoxy- oder Alkylgruppe, oder R₁ und R₂ zusammen eine Alkylendioxygruppe, R₃ und R₄, die gleich oder verschieden sein können, Wasser stoff-, Fluor-, Chlor- oder Bromatome, Alkyl-, Hydroxy-, Alk oxy-, Nitro-, Amino-, Alkylamino- oder Dialkylaminogruppen oder zusammen eine Methylendioxygruppe, und R₅ ein Wasserstoffatom, eine Alkenylgruppe, eine Alkyl- oder Phenylalkylgruppe, bedeuten, und deren Säureadditionssalze mit anorganischen oder organischen Säuren, welche wertvolle pharmakologische Eigenschaften aufweisen, insbesondere eine herzfrequenzsenkende Wirkung. Die neuen Verbindungen können nach an sich bekannten Verfahren hergestellt werden.
摘要:
Neue 3-Phenylpyrrol-Derivate der Formel I worin R' für Cyan, Trifluormethyl oder C 1 -C 1-4 Alkoxycarbonyl, R 2 für Vinyl oder eine Gruppe -CH 2 -CH 2 -X, in der X Chlor, Brom, Cyan, C 1 -C 4 -Alkoxycarbonyl, Phenylsulfonyl, 4-Bromphenylsulfonyl oder 4-Methylphenylsulfonyl bedeutet, R für Halogen, C 1 -C 4 -Alkyl oder C 1 -C 4 -Halogenalkyl und n für eine Zahl null, eins oder zwei stehen, haben wertvolle mikrobizide Eigenschaften zur Bekämpfung von phytopathogenen Pflanzenschädlingen, insbesondere von Phytopathogenen Pilzen.
摘要:
A dinitrile is hydrogenated to an omegaaminonitrile with hydrogen with a supported highly dispersed rhodium catalyst and only ammonia present. The catalyst is prepared by hydrolyzing a rhodium (III) halide or nitrate with strong aqueous base at elevated temperatures, drying the supported rhodium hydroxide at elevated temperatures and intimately contacting with hydrogen the dried product with hydrogen at 260°-360°C. High conversions, selectivity to aminonitrile and long catalyst service times and catalyst recyclability are achieved in the absence of an aprotic solvent.
摘要:
A process for the preparation of N-phosphonomethyt- glycine characterised in that it comprises:
(a) reacting 1,3,5-tricyanomethylhexahydro-1,3,5-triazine with an acyl chloride corresponding to the following general formula: wherein X represents chlorine, bromine or iodine; and R represents an aliphatic or aromatic group; to form the N-cyanomethyl-N-chloromethyl amide of the acyl chloride corresponding to the following general formula: wherein X and R are as defined above; (b) reacting the amide formed in (a) with a phosphite corresponding to the following general formuia: wherein R 1 and R 2 represent both aromatic groups or both aliphatic groups; and R 3 represents an aliphatic group or an alkali metal; to form a phosphonate corresponding to the following general formula wherein R' and R 2 are as defined above; and (c) hydrolyzing the phosphonate formed in (b) to yield N-phosphonomethylglycine is disclosed. Thus, an improved production for a valuable herbicide is provided.
摘要:
Ethylenediamine tetraacetic acid is prepared by forming an ethylenediamine formaldehyde adduct, cyanomethylat- ing the adduct with hydrocyanic acid at controlled temperatures to form ethylenediamine diacetonitrile. This is further cyanomethylated under acid conditions with formaldehyde and hydrocyanic acid in slight excess to form the ethylenediamine tetraacetonitrile. The precipitated product, with or without isolation is hydrolyzed to form the tetrasodium salt of the ethylenediamine tetracetic acid in a stock solution for further processing. The process, in semi-batch processing, provides yields above about 98% and in good purity. When combined with ethylenediamine tetraacetic acid production, the process eliminates the need for cyanide waste treatment and greatly simplifies the procedures needed to nrotect the environment.
摘要:
A dinitrile is hydrogenated to an omega-aminonitrile with hydrogen in an aprotic solvent with a supported rhodium catalyst and ammonia present. The catalyst is prepared by hydrolyzing a rhodium(III) halide with strong aqueous base at elevated temperatures, drying the supported rhodium hydroxide at elevated temperatures and hydrogenating the dried product at elevated temperatures. High conversions, selectivity to aminonitrile and catalyst recyclability are achieved.
摘要:
Compounds of formula in which R represents one of the following: wherein X is the anion of a strong acid having a pKa below 2; R 1 and R 2 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, halo, perfluoroalkyl of 1 to 3 carbon atoms, nitro, alkanoyl of 2 to 4 carbon atoms or alkoxycarbonyl of 2 to 4 carbon atoms; R is hydrogen, halo, nitro or alkanoyl of 2 to 4 carbon atoms; R 4 is hydrogen, halo, nitro or perfluoroalkyl of 1 to 3 carbon atoms; R 5 and R 6 are, independently, hydrogen or methyl; and R 7 and R 8 are, independently, alkyl of 1 to 4 carbon atoms, or when taken with the nitrogen atom to which they are attached form a piperidinyl, pyrolidinyl, morpholinyl, N-alkyl piperazinyl in which the alkyl group contains from 1 to 6 carbon atoms or N-phenylpiperazinyl group; or a pharmaceutically acceptable acid addition salt thereof are disclosed which have CNS stimulant and antihypertensive activity. Processes for their preparation and pharmaceutical compositions are also described.
摘要翻译:其中R代表以下之一:... ...其中X是pKa低于2的强酸的阴离子; R 1和R 2独立地是氢,1至6个碳原子的烷基,1至6个碳原子的烷氧基,1至3个碳原子的卤素,全氟烷基,硝基,2至4个碳原子的烷酰基 或2至4个碳原子的烷氧基羰基; R 3是2至4个碳原子的氢,卤素,硝基或烷酰基; R 4是1至3个碳原子的氢,卤素,硝基或全氟烷基; R 5和R 6独立地是氢或甲基; R 7和R 8独立地为1至4个碳原子的烷基,或者当与它们所连接的氮原子一起形成哌啶基,吡咯烷基,吗啉基,N-烷基哌嗪基时,其中烷基 基团含有1至6个碳原子或N-苯基哌嗪基; 或其药学上可接受的酸加成盐,其具有CNS兴奋剂和抗高血压活性。 还描述了其制备方法和药物组合物。
摘要:
Verfahren zur Herstellung von N,N-Dimethylaminoacetonitril der Formel indem Acetoncyanhydrin der Formel mit Dimethylamin und Formaldehyd im Temperaturbereich zwischen -10 und +120° C, gegebenfalls in Gegenwart basischer Katalysatoren, umgesetzt wird. Das N,N-Dimethylaminoacetonitril kann bekanntermaßen als Zwischenprodukt für die Synthese von pestiziden Wirkstoffen verwendet werden.