摘要:
A process for preparing a 2-carbamoylocxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloxyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
摘要:
A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloxyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
摘要:
A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
摘要:
Novel compounds having vasodilation and hypotensive effects are represented by the formula ##STR1## where R.sup.1 is halogen, nitro, cyano or lower alkoxy; each of R.sup.2 and R.sup.3 is lower alkyl, lower haloalkyl, lower alkoxyalkyl, aralkyloxyalkyl, aryloxyalkyl, lower alkenoxyalkyl, N,N-di-lower alkylaminoalkyl, N-lower alkyl-N-aralkylaminoalkyl, piperidylalkyl, 4-lower alkyl piperazinylalkyl, norpholinoalkyl or 1-pyrrolidinylalkyl; R.sup.4 is lower alkyl; A is lower alkylene; and R.sup.5 is hydrogen, lower alkyl, cycloalkyl of 3 to 7 carbon atoms, or aryl unsubstituted or substituted by one or two substituents selected from halogen, nitro, lower alkyl, lower alkoxy, di-lower alkylamino and cyano.Also disclosed are processes for their preparation.
摘要:
Halo-fusaric acid amides having the formula ##SPC1##Wherein X represents halogen or hydrogen, Y represents halogen and R.sub.1 and R.sub.2 are same or different and represent hydrogen or a lower alkyl group (C.sub.1-4) which are characterized by significant activity in the treatment of hypertension.
摘要:
An object of the present invention is to provide a process according to which 5-ene-3-one or 3,6-dione derivatives of sterols can be synthesized with a better yield, as well as a process for production of lipid metabolism improvers, foods, drinks, and animal feeds containing the 5-ene-3-one or 3,6-dione derivatives of sterols.The process for production of 5-ene-3-one or 3,6-dione derivatives of sterols of the present invention involves preparing a culturing solution containing an Arthrobacter bacterium, which is a microorganism exhibiting a cholesterol oxidase activity, and then, adding to the culturing solution an equivalent amount of hexane so as to prepare a bilayer solution consisting of an aqueous layer and a hydrocarbon-based solvent layer. Thereafter, sterol, or a derivative thereof, is made as a substrate contained therein, a reaction performed with cholesterol oxidase at 30° C. for 2 days, and, ethanol then added to separate a hydrocarbon-based solvent layer. Thereafter, the layer is dried to a state of dryness by means of a vacuum dryer so as to obtain 5-ene-3-one or 3,6-dione derivatives.
摘要:
An object of the present invention is to provide a process according to which 5-ene-3-one or 3,6-dione derivatives of sterols can be synthesized with a better yield, as well as a process for production of lipid metabolism improvers, foods, drinks, and animal feeds containing the 5-ene-3-one or 3,6-dione derivatives of sterols.The process for production of 5-ene-3-one or 3,6-dione derivatives of sterols of the present invention involves preparing a culturing solution containing an Arthrobacter bacterium, which is a microorganism exhibiting a cholesterol oxidase activity, and then, adding to the culturing solution an equivalent amount of hexane so as to prepare a bilayer solution consisting of an aqueous layer and a hydrocarbon-based solvent layer. Thereafter, sterol, or a derivative thereof, is made as a substrate contained therein, a reaction performed with cholesterol oxidase at 30° C. for 2 days, and, ethanol then added to separate a hydrocarbon-based solvent layer. Thereafter, the layer is dried to a state of dryness by means of a vacuum dryer so as to obtain 5-ene-3-one or 3,6-dione derivatives.
摘要:
A paper feeding apparatus is provided for use in a web threading apparatus of a rotary press for threading a web along a web threading path by drawing a leading end of the web using a web threading member movably provided on an outside portion of the web threading path and along the web threading path. The paper feeding apparatus includes a pair of an upstream roller and a downstream roller extending substantially parallel to a width direction of the web in the web threading path, and a driving mechanism for driving the upstream and downstream rollers in a feeding direction of the web and for ensuring that a peripheral speed of the downstream roller is at least equal to a moving speed of the web threading member. The upstream and downstream rollers are offset on an upstream side and a downstream side in a direction of the web threading path so that the web is not nipped by both the upstream roller and the downstream roller. A peripheral surface of one of the upstream and downstream rollers contacts a first side surface of the web and a peripheral surface of the other of the upstream and downstream rollers contacts a second side surface of the web, in a manner such that slipping between the rollers and the web is increased in response to a lowering of a tension on the web and such that slipping between the rollers and the web is decreased in response to an increase of the tension on the web. In addition, the upstream roller is displaceable in accordance with a variation of the tension on the web so as to constantly apply a force against the tension.
摘要:
Anti-obesity agents which comprise 3-ketosteroid compounds as an active ingredient are provided. The anti-obesity agents of the present invention have a high anti-obesity effect with little or no side effects and toxicity. Food products which contain anti-obesity agents comprising 3-ketosteroid compounds as an active ingredient, pharmaceutical compositions which comprise 3-ketosteroid compounds as an active ingredient and pharmaceutically acceptable carriers, and methods for preventing and treating obesity which comprise administering an effective amount of a 3-ketosteroid compound to a human are also provided.
摘要:
An improved semiconductor device is disclosed which is free from current leakage due to pin-holes or other gaps. Also an improved method for provessing a semiconductor device is shown. According to the invention, gaps produced in fabricating process of the semiconductor layer are filled with insulator in advance of deposition of electrodes. By virtue of this configuration, short current paths do not result even if transparent electrode is provided on the semiconductor layer.