摘要:
4-alkyl/4-alkenyl/4-alkynyl methyl/-1-arylcyclohexylamine compounds corresponding to the formula I a method for producing them, pharmaceutical compositions containing them, and methods of using them to treat or inhibit pain or other specified conditions associated with the ORL1 receptor.
摘要:
The invention concerns 4-aminomethyl-1-aryl-cyclohexylamine compounds, methods for producing same, pharmaceutical formulations containing said compounds and the use of 4-aminomethyyl-1-aryl-cyclohexylamine compounds for producing medicines and in related methods of treatment.
摘要:
Improved valve and methods for analytical techniques and systems. The valve includes a main housing, together with a rotor and stator. The stator has openings therethrough which allow for fluid communication between tubing when connected to the valve, and one surface of the rotor. Ferrules can be used with a clamping assembly to tightly connect the tubing to the valve in a way which separates the clamp assemblies (for ease of connection and disassembly), yet still provides close proximity between the fluid connections. In one embodiment, a series of two or more discrete elements, which can be selectively moved relative to one another, are located within the valve in a “stacked” configuration. Each of the discrete elements includes at least one feature useful for performing chemical analysis, such as sample loops, columns, detectors, mixers and the like, all of which are useful in chromatography.
摘要:
A method is described for the synthesis of oxetan-2-ones comprising protection of the hydroxy group of an hydroxy ester with an acid-labile acetal protecting group, reduction of this O-protected hydroxy ester to an O-protected hydroxy aldehyde, condensation of this aldehyde with a metal enolate of an activated carboxylic acid derivative and spontaneous deprotection of the hydroxy group during the acidic workup procedure. Using the new O-protected hydroxy aldehydes as intermediates the oxetan-2-ones can be obtained after separation in diastereomerically and enantiomerically pure form, in a remarkably reduced number of steps, and in a significantly improved overall yield.
摘要:
A process for the manufacture of a modified titanium-containing component of a Ziegler-Natta catalyst for the polymerization of C.sub.3-6 .alpha.-monoolefins, wherein a specific titanium-containing compound and a specific phosphorus-containing compound are dry-milled at a specific grinding acceleration in a vibratory ball mill. The characteristic feature of the process of the invention is that a mill is used which has a specific useful volume and the mill is initially charged with a specific amount of the titanium-containing compound, which is milled at a low temperature while the phosphorus-containing compound is gradually added, whereupon milling is continued while the temperature of the process material is gradually raised to a specific value and maintained at said value for a specific period of time, whereupon, if desired, milling is again continued at a lower temperature for a specific period of time. In this manner, modified titanium-containing components are obtained which in the polymerization process produce highly reproducible yields of polymer.
摘要:
The present invention relates to pentafluorosulphanyl-substituted compounds, methods for their production, medicaments containing such compounds and the use of such compounds for producing medicaments.
摘要:
A process for the manufacture of a titanium-containing component of a catalyst for the polymerization of monoolefins by the Ziegler-Natta method by milling (a) a particular titanium-containing compound, viz. a titanium trichloride/aluminum trichloride complex and (b) a particular ether with one another, in which process (1) a vibratory ball mill producing a particular milling acceleration is used, (2) the mill is first charged with the titanium-containing compound (a) and may or may not then be run for some time in the absence of diluents, (3) while milling, the ether (b) is added at a particular rate, continuously or in small portions, and in the absence of diluents, thereafter (4) the grist is brought to an elevated temperature, while milling, and is kept at this temperature until from 6 to 85% of the aluminum trichloride originally present in a bonded form in the titanium-containing compound (a) have been eliminated from the said compound (a), after which (5) the product obtained according to (4) is washed with a hydrocarbon and then (6) the product obtained in accordance with (5) is dried and milled for a certain length of time at a low temperature in the absence of a diluent. Polyolefins of high stereoregularity can be obtained in a high specific yield by means of the catalyst component manufactured according to the invention.
摘要:
The present invention relates to pentafluorosulphanyl-substituted compounds, methods for their production, medicaments containing such compounds and the use of such compounds for producing medicaments.
摘要:
Cyclohexylurea compounds corresponding to formula I a method for producing them, pharmaceutical compositions containing them, and the use of such compounds as pharmaceutically active agents with nociceptin/ORL1 receptor system activity for treating pain or other conditions associated with the nociceptin/ORL1 receptor system.
摘要:
The present invention relates to spirocyclic cyclohexane compounds, to methods for their production, to pharmaceutical compositions containing these compounds, to methods of treatment using such compounds and to the use of such spirocyclic cyclohexarie compounds for producing pharmaceutical compositions.