Patents Examined by Cecilia Shen
-
Patent number: 5212312Abstract: Dyes of the formula ##STR1## in which F is the radical of an indigoid dye, of a benzothioxanthene or of an aromatic dye which contains at least 4 alicyclic and/or heterocyclic, fused six-membered rings and at least two ring keto groups and is not water-soluble, R.sub.1 is a substituted or unsubstituted C.sub.1-4 -alkyl radical, a substituted or unsubstituted cycloalkyl radical, a substituted or unsubstituted aryl radical or a radical of the formula--A--Qwhere A is a substituted or unsubstituted C.sub.1-4 -alkylene radical and Q is a basic radical, which may be quaternised, and R.sub.2 is hydrogen or a substituted or unsubstituted C.sub.1-4 -alkyl radical, or in which R.sub.1 and R.sub.2 together with the ##STR2## group are a phthalimide radical, and R.sub.3 is hydrogen, a substituted or unsubstituted C.sub.1-4 -alkyl radical, a substituted or unsubstituted aryl radical, a C.sub.1-4 -alkoxycarbonyl radical or a N,N-di-C.sub.1-4 -alkylcarboxamide radical and n is 1, 2, 3 or 4.Type: GrantFiled: September 22, 1986Date of Patent: May 18, 1993Assignee: Ciba-Geigy AGInventors: Jean-Marie Adam, Athanassios Tzikas
-
Patent number: 5185446Abstract: This invention encompasses compounds of the formula: ##STR1## and pharmaceutically acceptable non-toxic salts thereof wherein n is 0,1 or 2 and X is --N.dbd.C--R.sub.9 or NR.sub.10 --C.dbd.Twhere R.sub.1, R.sub.2, R.sub.3, and R.sub.9 and R.sub.10 and X, Y, W and T are variables.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorders, overdoes with benzodiazepine type drugs, and enhancement of alertness.Type: GrantFiled: September 4, 1990Date of Patent: February 9, 1993Assignee: Neurogen CorporationInventors: Kenneth Shaw, Alan J. Hutchison
-
Patent number: 5179104Abstract: An asymmetric process for the preparation of enantiomerically pure .beta.-D-(-)-dioxolane-nucleosides. The enantiomerically pure dioxolane nucleosides are active HIV agents, that are significantly more effective than the prior prepared racemic mixtures of the nucleosides. The anti-viral activity of the compounds is surprising in light of the generally accepted theory that moieties in the endo conformation, including these dioxolanes, are not effective antiviral agents. The toxicity of the enantiomerically pure dioxolane nucleosides is lower that that of the racemic mixture of the nucleosides, because the nonnaturally occurring .alpha.-isomer is not included.The product can be used as a research tool to study the inhibition of HIV in vitro or can be administered in a pharmaceutical composition to inhibit the growth of HIV in vivo.Type: GrantFiled: December 5, 1990Date of Patent: January 12, 1993Assignee: University of Georgia Research Foundation, Inc.Inventors: Chung K. Chu, Raymond F. Schinazi
-
Patent number: 5143917Abstract: The synthesis and application of N(1)-n-alkyl-pyrimidinium-salts are described. These surfactants have a very small critical micelle concentration ()CMC) in the order of 10.sup.-5 -10.sup.-7 Mol/Liter. These N(1)-n-alkyl-pyrimidinium components have pharmacological activities and can act as antimetabolites.Type: GrantFiled: May 24, 1990Date of Patent: September 1, 1992Assignee: Medice Chem.-Pharm. Fabrik Putter GmbH & Co. KGInventor: Henrich H. Paradies
-
Patent number: 5142053Abstract: The invention relates to a process for the preparation of the compound of formula I: ##STR1## characterized in that 2,3,4-trimethoxybenzaldehyde is dissolved with piperazine, and then the reaction medium is subjected to the action of hydrogen to give the compound of formula I.Type: GrantFiled: April 19, 1991Date of Patent: August 25, 1992Assignee: Adir et CompagnieInventor: Jean-Claude Souvie
-
Patent number: 5135931Abstract: Disclosed are compounds displaying improved preferential serotonin-1A binding activity. The claimed compounds have the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of hydroxy, halogen, lower alkyl, lower alkoxy, and hydrogen;R.sub.2 is hydrogen or lower alkyl;X is CH or a nitrogen atom;ALK is a saturated, branched or unbranched, aliphatic hydrocarbon having from 1 to 7 carbon atoms; andZ is selected from the group consisting of hydrogen, halogen, hydroxy, trifluoromethyl, or lower alkyl;or a pharmaceutically acceptable salt thereof.Type: GrantFiled: June 10, 1991Date of Patent: August 4, 1992Assignee: Akzo N.V.Inventors: Patrick Carlier, Claude Poisson, Andre Monteil
-
Patent number: 5133973Abstract: The synthesis and application of N(1)-n-alkyl-pyrimidinium-salts are described. These surfactants have a very small critical micelle concentration (CMC) in the order of 10.sup.-5 -10.sup.-7 Mol/Liter. These N(1)-n-alkyl-pyrimidinium components have pharmacological activities and can act as antimetabolites.Type: GrantFiled: May 24, 1990Date of Patent: July 28, 1992Assignee: Medice Chem.-Pharm. Fabrik Putter GmbH & Co. KGInventor: Henrich Paradies
-
Patent number: 5132425Abstract: Novel quaternary ammonium compounds of formula (1) and (2): ##STR1## wherein R represents a straight or branched alkylene group containing from 2 to 24 carbon atoms, an alicyclic alkylene group, an aralkylene group or a group of the formula --CH.sub.2 CH.sub.2 O).sub.p (CH.sub.2 CH.sub.2).sub.q (in which p and q each represents a positive integer), R' represents a straight or branched alkyl group containing from 1 to 24 carbon atoms, an alkenyl group or an aralkyl group, R" represents an alkyl group containing 1 to 5 carbon atoms or an aralkyl group, X.sup.- represents an anionic group and n represents a positive integer of from 2 to 50 are disclosed. The quaternary ammonium compounds are useful as surfactants capable of serving as softening agents and antistatic agents for fabrics, hair and the like.Type: GrantFiled: January 28, 1991Date of Patent: July 21, 1992Assignee: Kao CorporationInventors: Kohshiro Sotoya, Uichiro Nishimoto, Hiroshi Abe
-
Patent number: 5129938Abstract: A herbicidal pyrimidine derivative having the formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, Y.sub.1, Y.sub.2, Y.sub.3, X and Z are defined as in the specification.Type: GrantFiled: July 22, 1991Date of Patent: July 14, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Mitsunori Hiratsuka, Naonori Hirata, Kazuo Saitoh, Hideyuki Shibata
-
Patent number: 5128348Abstract: Certain hexane and heptane amines including geometric and stereoisomers, agricultural compositions containing them and their use as fungicides.Type: GrantFiled: September 12, 1990Date of Patent: July 7, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Gregory S. Basarab
-
Patent number: 5127935Abstract: Disclosed herein is uracil derivatives having a haloalkyl group at the 5-position and a phenyl group at the 2-position which has a specific substituent, which are represented by the formula (I) and showing penetrative translocation activity and a very high herbicidal activity, in which as compared with the conventional herbicidal compounds, the said uracil derivatives can be applied for either soil treatment or foliage treatment, thereby producing a quick and high herbicidal effect even at a very low dosage against a large variety of weeds including perennial weeds, and have the property to residual effect for an appropriate period of time.Type: GrantFiled: April 9, 1991Date of Patent: July 7, 1992Assignee: Nissan Chemical Industries Ltd.Inventors: Jun Satow, Kenzou Fukuda, Kaoru Itoh, Koichi Suzuki, Tsutomu Nawamaki, Shigeomi Watanabe
-
Patent number: 5126463Abstract: This invention provides a process for the production of an anhydride by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the anhydride product is removed, carbon monoxide, present in the reactor effluent as a by-product, is oxidized to carbon dioxide and part of the gaseous effluent, comprised mainly of carbon dioxide and unreacted hydrocarbon, is recycled to the reactor. Removal of carbon monoxide from the recycle stream reduces the hazard of a fire or explosion in the reactor or associated equipment. The use of carbon dioxide as the principal diluent increases heat removal from the reactor, thereby increasing the production capacity of the reactor.Type: GrantFiled: October 31, 1990Date of Patent: June 30, 1992Assignee: The BOC Group, Inc.Inventors: Ramakrishnan Ramachandran, Arthur I. Shirley, Lien-Lung Sheu
-
Patent number: 5126350Abstract: A compound represented by the formula I: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen or (C.sub.2 -C.sub.10) alkanoyl in substantially chemically pure form, and pharmaceutical compositions thereof are disclosed.Type: GrantFiled: June 13, 1990Date of Patent: June 30, 1992Assignee: Schering CorporationInventors: Raymond Cooper, Ann C. Horan, Joseph A. Marquez, Mahesh G. Patel
-
Patent number: 5126443Abstract: Compounds of the formulae ##STR1## salts thereof, and mixtures of such compounds or salts,wherein Me, Pc, Q.sub.1, R.sub.1, R.sub.2, R.sub.3, Y, a, b, c and d as defined,useful as fiber-reactive dyes for dyeing or printing hydroxy group- and nitrogen-containing organic substrates, for example, textile material comprising cotton, the obtained dyeings and prints having good all-round fastnesses, such as good light fastness.Type: GrantFiled: September 19, 1990Date of Patent: June 30, 1992Assignee: Sandoz Ltd.Inventors: Helmut A. Moser, Roland Wald
-
Patent number: 5124332Abstract: Substituted indoles and derivatives thereof are described, as well as methods for the preparation and pharmaceutical composition of the same, which are useful as central nervous system agents and are particularly useful as dopaminergic, antipsychotic, and antihypertensive agents as well as for treating hyperprolactinaemia-related conditions and central nervous system disorders.Type: GrantFiled: January 28, 1991Date of Patent: June 23, 1992Assignee: Warner-Lambert CompanyInventors: Lawrence D. Wise, David J. Wurtrow
-
Patent number: 5124442Abstract: The present invention relates to a process for preparing a compound of formula I ##STR1## from a compound of formula II ##STR2## via a compound of formula IV ##STR3## and to a compound of formula IV by way of an intermediate in the preparation of a compound of formula I.Type: GrantFiled: October 25, 1990Date of Patent: June 23, 1992Assignee: Universite Pierre et Marie Curie (Paris VI)Inventors: Stanislas Czernecki, Jean-Marc Valery
-
Patent number: 5124324Abstract: Disclosed are compounds of formula I ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, benzyl or an indolyl carbonyl group, R.sub.2 is a saturated or unsaturated 5- or 8-membered heterocyclic group containing as a hetero atom one or more nitrogen atoms, the heterocyclic group is optionally substituted at an N or C atom by a C.sub.1 -C.sub.6 alkyl or aralkyl group, n is an integer of 1 to 5 and one or more hydrogen atoms, in an alkylene chain --(CH.sub.2).sub.n -- are optionally substituted by a C.sub.1 -C.sub.6 alkyl, phenyl and/or hydroxyl group, physiologically acceptable salts and quaternary ammonium salts thereof. The compounds are selective antagonists of 5-HT.sub.3 receptors and are useful in the treatment of psychotic disorders, neurotic diseases, gastric stasis symptoms, gastrointestinal disorders, nausea and vomiting.Type: GrantFiled: November 16, 1990Date of Patent: June 23, 1992Assignee: Nisshin Flour Milling Co., Ltd.Inventors: Haruhiko Kikuchi, Hiroaki Satoh, Makoto Yanai, Toshio Suguro, Koichiro Hagihara
-
Patent number: 5124331Abstract: 3,4-Dihydrothieno[2,3-d]pyrimidine compounds having immunoregulating and carcinostatic actions of the general formula ##STR1## wherein A represents a C.sub.1-4 alkylene; R.sup.1 represents hydrogen, an alkyl, an aryl which may be substituted or --N(R.sup.7)(R.sup.8); R.sup.2, R.sup.3 and R.sup.4 represent hydrogen, a halogen, hydroxy, an alkyl which may be substituted by a halogen, an alkoxy, nitro, cyano or --N(R.sup.9)(R.sup.10); R.sup.5 represents hydrogen, a halogen, nitro, amino, cyano, an alkyl or an alkoxycarbonyl; R.sup.6 represents hydrogen, a halogen, nitro, amino, cyano, an alkyl, an alkoxycarbonyl, a halogenosulfonyl or --SO.sub.2 N(R.sup.12)(R.sup.13); or R.sup.5 and R.sup.6 may, taken together, form a C.sub.3-6 alkylene chain, and their pharmaceutical use.Type: GrantFiled: November 2, 1989Date of Patent: June 23, 1992Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Masafumi Arita, Yoshitaka Fukumasu, Mitsuharu Sano, Yukio Hoshino, Hirotsugu Komatsu
-
Patent number: 5122617Abstract: Tetracarboxylic acid anhydrides represented by the following formulae [IA] and [IB] are provided: ##STR1## where n is an integer of 1 to 3. The tetracarboxylic acid anhydrides give polyimides having low thermal expansion, low dielectric constant and low hygroscopicity.Type: GrantFiled: August 23, 1991Date of Patent: June 16, 1992Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventor: Koji Okada
-
Patent number: 5120738Abstract: Compounds represented by general formula (I) below ##STR1## wherein R.sup.1 and R.sup.2, which are the same or different, each represent a hydrogen atom or a protective group for a hydroxyl group;R.sup.3 represents a saturated or unsaturated, linear, branched or cyclic, monovalent C.sub.5 .about.C.sub.25 -aliphatic hydrocarbon group which may be substituted with an aromatic group, or a group of formula ##STR2## where R.sup.4 represents a saturated or unsaturated, linear, branched or cyclic, monovalent C.sub.5 .about.C.sub.25 -aliphatic hydrocarbon group which may be substituted with an aromatic group, andR.sup.5 represents a hydrogen atom, or a saturated or unsaturated, linear, branched or cyclic, monovalent hydrovarbon group which may be substituted with an aromatic group;Q represents(a) a group of formula --X.sup.1 --A--Y.sup.1 --, where A represents a saturated or unsaturated, linear, branched or cyclic divalent C.sub.2 .about.C.sub.Type: GrantFiled: October 5, 1990Date of Patent: June 9, 1992Assignee: Fujirebio Inc.Inventors: Hiroshi Ikawa, Hajime Matsumoto, Nobuo Kobayashi, Jun Kusunoki