Spiro Patents (Class 544/6)
  • Patent number: 4943311
    Abstract: A compound having the structural formula ##STR1## where R is C.sub.2 -C.sub.8 alkylene having 2 to 4 carbon atoms linking X and Y;R.sup.1 is C.sub.1 -C.sub.8 linear or branched alkylene, C.sub.1 -C.sub.6 oxyalkylene, C.sub.1 -C.sub.6 thioalkylene or C.sub.1 -C.sub.6 aminoalkylene;R.sup.2 and R.sup.3 are the same or different and are hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylsulfonyl, phenyl, substituted phenyl, phenoxy, substituted phenoxy, cyano, nitro, --OCOR.sup.4, --COOR.sup.5, --CH.sub.m Q.sub.3-m or --OCH.sub.m Q.sub.3-m ;R.sup.4 is C.sub.1 -C.sub.4 alkyl;R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl;Q is halogen;X and Y are the same or different and are oxygen, sulfur, sulfinyl, sulfonyl or if one is NH, the other is sulfur;Z is nitrogen or CH; andm is 1, 2 or 3;and physiologically acceptable salts thereof,is disclosed. A process for synthesizing the compound of this invention is also set forth.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: July 24, 1990
    Assignees: Uniroyal Chemical Company, Inc., Uniroyal Chemical Ltd/Ltee
    Inventors: Hoi K. Lai, Robert A. Davis, Allen R. Blem
  • Patent number: 4939270
    Abstract: Primary diamines, employed in stoichiometric excess, react with a spirodilactam precursor selected from 4-oxoheptandioic acid compounds or 1,6-dioxaspiro[4.4]nonane-2,7-diones, to produce 1,6-diaza[4.4]spirodilactams having an amino-containing substituent on each spiro ring nitrogen atom. The spirodilactams are useful in the production of thermoplastic polyamides by reaction with diacids and as curing agents for epoxy resins in the production of thermoset resins.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: July 3, 1990
    Assignee: Shell Oil Company
    Inventor: Pen C. Wang
  • Patent number: 4939251
    Abstract: Novel 1-azaspiro[4.4] lactams are produced by reaction of at least one hydroxy-containing primary amino compound with a 4-ketodiacid compound or a 1,6-dioxaspiro[4.4]lactone. Molar excesses of amion compound result in production of spirodilactams, while limited molar quantities of amino compound results in production of a spirolactam-lactone which reacts further with hydroxy-containing primary amino compound or with hydroxy-free primary amino compound to produce a spirodilactam. Certain of the spirolactams are useful as precursors for glycidyloxy derivatives which react with epoxy curing agents to form insoluble thermoset resins while others are useful as curing agents and yet others are converted to glycidyloxy derivatives useful as reactive diluents in epoxy resin applications.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: July 3, 1990
    Assignee: Shell Oil Company
    Inventor: Pen C. Wang
  • Patent number: 4927831
    Abstract: This invention relates to spiro-isoquinoline-pyrrolidine tetrones and their pharmaceutically acceptable salts thereof, to processes for their preparation, to methods for using the compounds, and to pharmaceutical preparations thereof. The compounds have pharmaceutical properties which render them beneficial for the prevention of diabetes mellitus associated complications.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: May 22, 1990
    Assignee: American Home Products
    Inventor: Michael S. Malamas
  • Patent number: 4916128
    Abstract: Thiadiazinones of the formula I ##STR1## wherein A is --CHR.sup.4 --CHR.sup.5 --, --CH.sub.2 --CR.sup.4 R.sup.5 --, --CR.sup.4 R.sup.5 --CH.sub.2 --, --CHR.sup.4 --CHR.sup.5 --CH.sub.2 --, --CHR.sup.4 --CH.sub.2 --CHR.sup.5 --, --CH.sub.2 --CHR.sup.4 --CHR.sup.5 --, --CR.sup.4 R.sup.5 --CH.sub.2 CH.sub.2 --, --CH.sub.2 --CR.sup.4 R.sup.5 --CH.sub.2 -- or --CH.sub.2 CH.sub.2 --CR.sup.4 R.sup.5 --,R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently H, C.sub.1-5 -alkyl, C.sub.2-5 -alkenyl or C.sub.2-5 -alkinyl,R.sup.3 is also C.sub.1-15 -acyl,R.sup.6 is H, alkyl, alkoxyl, OH, F, Cl, Br or I andZ is (H, H), (H, alkyl), (alkyl, alkyl) or O,the alkyl, alkenyl, alkinyl and/or alkoxy groups in each case containing up to 5 C atoms, but wherein, if A is --CH.sub.2 CH.sub.2 -- and Z is O, one of the radicals R.sup.1, R.sup.2, R.sup.3 and R.sup.6 must be other than H,and salts thereof demonstrate positive inotropic action and are suitable for combating cardiovascular diseases.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: April 10, 1990
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Rochus Jonas, Jaime Piulats, Michael Klockow, Ingeborg Lues, Hans-Jochen Schliep
  • Patent number: 4906635
    Abstract: Methods and pharmaceutical compositions are disclosed for reducing intraocular pressure. The methods and compositions employ an active ingredient which comprises certain benzothiadiazinyl and quinazolinyl substituted carboxyalkyl dipeptides wherein the benzothiadiazinyl or quinazolinyl portions are joined to the dipeptide portions by an aminocarbonyl group.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: March 6, 1990
    Assignee: Schering Corporation
    Inventors: Bernard R. Neustadt, David R. Andrews, Paul E. McNamara, Robert W. Watkins
  • Patent number: 4904300
    Abstract: Imidazole derivatives of formula I ##STR1## and the stereochemically isomeric forms thereof, and salts thereof, have useful herbicidal properties. The substituents R.sup.1, L and X have the meanings defined herein.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: February 27, 1990
    Assignee: Ciba-Geigy Corp.
    Inventors: Hans-Dieter Schneider, William R. Lutz, Henry Szczepanski, Werner Topfl
  • Patent number: 4895942
    Abstract: Novel epoxyalkoxy-containing [4.4] spirodilactams having ring nitrogen atoms in the 1- and the 6- ring positions and having a substituent on each ring nitrogen atom, at least one of which substituents contains an epoxyalkyl moiety. Such epoxy compounds are produced by reaction of a 1-halo-2,3-epoxyalkane and the corresponding hydroxy-containing spirodilactam followed by treatment with strong base.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: January 23, 1990
    Assignee: Shell Oil Company
    Inventor: Pen C. Wang
  • Patent number: 4874870
    Abstract: A process for converting 6-carboxy to 6-hydroxymethyl mevinolin analogs and novel intermediates formed in this process are disclosed.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: October 17, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Samuel L. Graham, Thomas H. Scholz
  • Patent number: 4871719
    Abstract: Novel 13-spiro-2'-[tetrahydrofuran]-milbemycins of the formula I ##STR1## in which X represents one of the groups --CH(OR.sub.1)--, --C(.dbd.O)-- or --C(.dbd.N--OH)--;R.sub.1 represents hydrogen or a OH-protecting group;R.sub.2 represents methyl, ethyl, isopropyl or sec.-butyl or the group --C(CH.sub.3).dbd.CH--A in which A represents methyl, ethyl or isopropyl; andR.sub.3 represents hydrogen; C.sub.1 -C.sub.10 -alkyl; C.sub.1 -C.sub.10 -alkyl substituted by at least one substituent selected from the group consisting of halogen, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkoxyalkoxy C.sub.3 -C.sub.9 -alkoxyalkoxyalkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.3 -C.sub.7 -cycloalkyl, C.sub.1 -C.sub.3 -alkyl-substituted C.sub.3 -C.sub.7 -cycloalkyl, hydroxy, benzyloxy, C.sub.1 -C.sub.6 -acyl and C.sub.1 -C.sub.6 -acyloxy, it being possible for each of the above-mentioned radicals representing or containing an alkoxy group to be terminally substituted at a terminal alkoxy group by hydroxy, halogen, C.sub.1 -C.sub.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: October 3, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Maienfisch
  • Patent number: 4846874
    Abstract: Novel N-(heterocyclicaminocarbonyl) substituted thiophene- , furan- and pyrrolesulfonamides, such as N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-6,7-dihydro-5H-thieno- [3,2-b]thiopyran-3-sulfonamide. 4,4-dioxide and N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-6,7-dihydro-5H-thieno[3,2-b ]thiopyran-3-sulfonamide, 4,4-dioxide and their method-of-use as herbicides are described.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: July 11, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert J. Pasteris
  • Patent number: 4847388
    Abstract: A novel class of unsaturated polycyclic ethers and esters comprises unsaturated ether and ester derivatives of a hydroxyaryl-substituted [4.4] spirodilactams having nitrogen atoms in the 1- and 6-positions of the spiro ring system and having the hydroxyaryl groups attached to each spiro ring nitrogen. Such unsaturated ethers and esters react with conventional curing agents to produce cured, insoluble products having high glass transition temperatures.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: July 11, 1989
    Assignee: Shell Oil Company
    Inventor: Pen C. Wang
  • Patent number: 4835280
    Abstract: The present invention provides Indolines of the formula: ##STR1## ps useful to provide pharmaceutically active pyrrolobenzimidazoles or tautomers thereof, of the formula: These compounds are useful for treating heart or circulatory diseases, especially those which respond to a change of blood pressure, an increase in cardiac output and/or a change in micro-circulation.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: May 30, 1989
    Assignee: Boehringer Mannheim GmbH
    Inventors: Alfred Martens, Jens-Peter Holck, Herbert Berger, Bernd Muller-Beckman, Klaus Strein, Egon Roesch
  • Patent number: 4826816
    Abstract: Antihypertensive compounds with angiotensin-converting enzyme inhibitory activity and diuretic activity are disclosed. Such compounds are useful in the treatment of cardiovascular disorders, especially hypertension and congestive heart failure, and are useful in the treatment of glaucoma.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: May 2, 1989
    Assignee: Schering Corporation
    Inventors: David R. Andrews, Federico C. A. Gaeta
  • Patent number: 4824472
    Abstract: Novel herbicidal 1-cyclyl or polycyclyl substituted 1H-imidazole-5-carboxylic acid derivatives, compositions containing these compounds as active ingredients, and a method for controlling weeds, preferably selectively in crops of useful plants. Processes for making these novel compounds.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: April 25, 1989
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Guy R. E. Van Lommen, Victor Sipido, Wim G. Verschueren, William R. Lutz
  • Patent number: 4800202
    Abstract: Fungicidally active aminomethyltetrahydrofurans of the formula ##STR1## in which A represents a divalent alkylene or alkenylene chain which is in each case optionally substituted andR.sup.1 and R.sup.2 independently of one another each represent hydrogen, alkyl, alkenyl, alkinyl, alkoxyalkyl, dialkoxyalkyl, hydroxyalkyl, hydroxyalkoxyalkyl, dioxolanylalkyl, oxolanylalkyl, or dioxanylalkyl, or represent in each case optionally substituted cycloalkylalkyl, cycloalkyl, aralkyl, aralkenyl or aryl, orR.sup.1 and R.sup.2, together with the nitrogen atom to which they are bonded, represent an optionally substituted saturated heterocyclic radical, which can optionally contain further heteroatoms,or an acid addition salts thereof. Some intermediates therefor wherein NR.sup.1 R.sup.2 is replaced by halogen or sulphonyloxy are also new.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: January 24, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Weissmuller, Dieter Berg, Stefan Dutzmann, Paul Reinecke
  • Patent number: 4795811
    Abstract: A process for converting 6-carboxy to 6-hydroxymethyl mevinolin analogs and novel intermediates formed in this process are disclosed.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: January 3, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Samuel L. Graham, Thomas H. Scholz
  • Patent number: 4764608
    Abstract: This invention relates to novel processes for the manufacture of spiro-linked pyrrolidine-2,5-diones of formula; ##STR1## which have a potent inhibitory activity on aldose reductase and are useful for reduction and prevention of chronic diabetic complications.The invented processes are useful as improved and convenient method for a large scale manufacture.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: August 16, 1988
    Assignee: Kyorin Pharmaceutical Co., Ltd.
    Inventors: Kuniyoshi Masuzawa, Kyuya Okamura, Kazunori Kasuga, Shizuyoshi Fujimori, Susumu Kinoshita, Hiroshi Matsukubo
  • Patent number: 4762831
    Abstract: A process for the preparation of a 1,8-bridged 4-quinolone-3-carboxylic acid of the formula ##STR1## wherein the substituents are defined hereinbelow. Some of the compound are new. The old and new compounds are antibacterials and promote animal growth.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: August 9, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Grohe, Michael Schriewer
  • Patent number: 4749789
    Abstract: This invention relates to novel processes for the manufacture of spiro-linked pyrrolidine-2,5-diones of the formula; ##STR1## which have a potent inhibitory activity on aldose reductase and are useful for reduction and prevention of chronic diabetic complications.The invented processes are useful as improved and convenient method for a large scale manufacture.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: June 7, 1988
    Assignee: Kyorin Pharmaceutical Co., Ltd.
    Inventors: Kuniyoshi Masuzawa, Kyuya Okamura, Shizuyoshi Fujimori, Susumu Kinoshita, Hiroshi Matsukubo
  • Patent number: 4743601
    Abstract: There are disclosed novel compounds of the formula ##STR1## where X is hydrogen, loweralkyl, loweralkoxy, hydroxy, halogen, nitro or trifluoromethyl; R.sub.1 is hydrogen or loweralkyl; R.sub.2 is hydrogen, loweralkyl, arylloweralkyl or --(CH.sub.2).sub.m R.sub.7 wherein m is 1, 2 or 3 and R.sub.7 is cyano or amino; R.sub.3 and R.sub.4 are independently hydrogen or loweralkyl; R.sub.5 and R.sub.6 are independently hydrogen or loweralkyl, or R.sub.5 +R.sub.6 taken together with the carbon atom to which they are attached constitute a cyclobutane, cyclopentane, cyclohexane, cycloheptane, pyrrolidine, piperidine, morpholine or thiomorpholine ring, or R.sub.5 is hydrogen and R.sub.6 is aryl or --CH.sub.2 OR.sub.8 wherein R.sub.8 is hydrogen, loweralkyl or loweralkylcarbonyl, which are useful for enhancing memory.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: May 10, 1988
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Karl Schonafinger, Helen H. Ong
  • Patent number: 4723987
    Abstract: Sulfonamides such as N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-1,3-dihydro-6-methyl-3-oxof uro[3,4-c]pyridine-4-sulfonamide are useful as herbicides and plant growth regulants.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: February 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mary A. Hanagan
  • Patent number: 4719296
    Abstract: A spiroxazine compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group, an allyl group, an aryl group or an aralkyl group; rings A and B each represents a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring or a substituted or unsubstituted heterocyclic ring; X represents an oxygen atom or a sulfur atom; and n represents an integer of from 1 to 6, and a photochromic composition containing said spiroxazine compound are disclosed. The compound is excellent in compatibility to and solubility in high molecular weight compounds, and the composition containing the same stably develops a color of high density upon irradiation of ultraviolet rays.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: January 12, 1988
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masahiro Irie, Shuichi Maeda
  • Patent number: 4709027
    Abstract: There are disclosed compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen or lower alkyl, or R.sup.1 and R.sup.2 taken together represent ##STR2## A is O or NR.sup.3 ; B is --(CH.sub.2).sub.n --, ##STR3## R.sup.3 is hydrogen or lower alkyl; R.sup.4 is hydrogen, lower alkyl, aryl of 6-12 carbon atoms or halo;R.sup.5 is unsubstituted or substituted phenyl, 2-pyridinyl, 2-pyrimidinyl, 2-pyrazinyl or 3-pyridazinyl, where the substituents are selected from the group lower alkyl, lower alkoxy, halo, cyano, nitro and trifluoromethyl;Z is --(CH.sub.2).sub.n -- or vinylene;X is lower alkylene, vinylene or O;m is 2-5;n is 1-3;o is 1-5;and the pharmaceutically acceptable salts thereof and their use as antipsychotic/anxiolytic agents having a low liability for extrapyramidal side effects.
    Type: Grant
    Filed: June 25, 1986
    Date of Patent: November 24, 1987
    Assignee: American Home Products Corporation
    Inventors: Magid A. Abou-Gharbia, Guy A. Schiehser
  • Patent number: 4704389
    Abstract: This invention relates to aromatic .omega.-alkylimino-tetrahydro-6H-1,3-thiazine-6-one derivatives, to a process for the preparation of same, and to their use as anxiolytic and antihypertensive agents.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: November 3, 1987
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Maurice W. Gittos, Marcel Hibert
  • Patent number: 4612312
    Abstract: Glutarimide derivatives of the formula which are useful antihypertensive and antianxiety agents ##STR1## wherein R.sub.1 and R.sub.2 each independently represent hydrogen, a 1 to 4 carbon alkyl, a 1 to 4 carbon alkoxy, halogen, nitro, hydroxy, SO.sub.3 H, SO.sub.2 NH.sub.2, and when R.sub.1 and R.sub.2 are taken together, form a fused phenyl group at the 1,2- or 3,4- positions, with the proviso that when R.sub.1 and R.sub.2 are identical they each represent a hydrogen, a 1 to 4 carbon alkyl, a 1 to 4 carbon alkoxy, hydroxy or a halogen group; A and B independently represent an oxo, a thio or an imino group having the formula --N(R.sub.6)-- wherein the R.sub.6 group is hydrogen or a 1 to 4 carbon alkyl group; R.sub.3 is a hydrogen, a 1 to 4 carbon alkyl or hydroxyethyl group; n is an integer of from 2 to 5; and R.sub.4 and R.sub.5 represent methyl groups or when taken together form a cyclopentane or cyclohexane ring; its enantiomers; and the pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: September 16, 1986
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Marcel Hibert, Maurice W. Gittos
  • Patent number: 4593092
    Abstract: The invention provides a novel spiro-linked pyrrolidine-2,5-dione of the formula; ##STR1## wherein X.sub.1 and X.sub.2 each independently represent a hydrogen, a halogen atom, a lower alkyl or lower alkoxy group; Y is a methylene group, oxygen or sulfur atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently represent a hydrogen atom, a lower alkyl group or forming a benzene ring together with their adjacent carbon atoms; the base salts thereof with pharmaceutically acceptable cations, and processes for their manufactures.The compounds of formula [I] useful as aldose reductase inhibitors and as therapeutic agents for treatment of chronic diabetic complications are also disclosed.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: June 3, 1986
    Assignee: Kyorin Pharmaceutical Co., Ltd.
    Inventors: Tsutomu Irikura, Koichi Takagi, Shizuyoshi Fujimori, Yoshihiro Hirata
  • Patent number: 4587247
    Abstract: Novel substituted and unsubstituted 13-(alkoxy)methoxy derivatives of the avermectin aglycones are useful as anthelmintic and antiparasitic agents. The compounds are also useful as pesticides and insecticides against agricultural pests. Included herein are novel intermediates useful in the process for preparing said avermectin aglycone derivatives. Compositions of said derivatives and methods of administering said compositions are also disclosed.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: May 6, 1986
    Assignee: Merck & Co., Inc.
    Inventors: Bruce O. Linn, Helmut H. Mrozik
  • Patent number: 4559340
    Abstract: There are disclosed benzothiadiazinyl and quinazolinyl substituted carboxylalkyl dipeptides, wherein the benzothiodiazinyl or quinazolinyl portions are joined to the dipeptide portions by an aminocarbonyl group. Compounds of this invention are useful as antihypertensive agents, in the treatment of congestive heart failure and in the treatment of glaucoma. In addition, compounds of this invention have diuretic activity.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: December 17, 1985
    Assignee: Schering Corporation
    Inventors: Bernard R. Neustadt, David R. Andrews, Paul E. McNamara
  • Patent number: 4556652
    Abstract: Compounds having the general structure ##STR1## and their pharmaceutically acceptable salts, wherein the substitutents are defined herein, which exhibit antihypertensive activity.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: December 3, 1985
    Assignee: USV Pharmaceutical Corp.
    Inventors: John T. Suh, Jerry W. Skiles, John J. Piwinski, Paul Menard, Howard Jones
  • Patent number: 4556655
    Abstract: Antihypertensive compounds with angiotensin-converting enzyme inhibitory activity and diuretic activity are disclosed. Such compounds are useful in the treatment of cardiovascular disorders, especially hypertension and congestive heart failure, and are useful in the treatment of glaucoma.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: December 3, 1985
    Assignee: Schering Corporation
    Inventors: David R. Andrews, Federico C. A. Gaeta
  • Patent number: 4555508
    Abstract: Compounds having the general structure ##STR1## and their pharmaceutically acceptable salts, wherein the substituents are defined herein, which exhibit antihypertensive activity.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: November 26, 1985
    Assignee: USV Pharmaceutical Corp.
    Inventors: John T. Suh, John R. Regan, John J. Piwinski, Paul Menard, Howard Jones
  • Patent number: 4555569
    Abstract: The invention relates to chromogenic quinazolines of the formula ##STR1## wherein Y is a polycyclic non-aromatic heterocyclic radical which is attached to the quinazoline moiety through a fused benzene nucleus and is unsubstituted or substituted, andZ is hydrogen, R, --OR.sub.1, --SR.sub.1 or --NR.sub.2 R.sub.3, whereinR and R.sub.1 are each alkyl which is unsubstituted or substituted by cyano or lower alkoxy, or are cycloalkyl, unsubstituted or substituted aryl or aralkyl or an unsubstituted or substituted heterocyclic radical, and R.sub.1 can also be haloalkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, alkyl which is unsubstituted or substituted by halogen, hydroxy, cyano or lower alkoxy, or are cycloalkyl, phenyl, benzyl, or phenyl or benzyl which are each substituted by halogen, nitro, cyano, lower alkyl, lower alkoxy or lower alkoxycarbonyl, and R.sub.2 can also be acyl; or R.sub.2 and R.sub.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: November 26, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Zink, Ian J. Fletcher
  • Patent number: 4496565
    Abstract: Compounds of formula (I): ##STR1## a pharmaceutically acceptable salt or solvate thereof having anti-hypertensive activity, a process for their preparation and their use as pharmaceuticals.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: January 29, 1985
    Assignee: Beecham Group p.l.c.
    Inventors: John M. Evans, Valerie A. Ashwood
  • Patent number: 4447584
    Abstract: The invention relates to processes for the synthesis of tertiary phosphine oxides and sulphides. The process according to the invention consists, in a first step, of reacting a secondary phosphine oxide or sulfide with an optionally activated alkali metal amide, and, in a second step, of reacting the mixture obtained in the first step with an organic halide containing at least one halogenophenyl radical or one halogenomethyl group. Tertiary phosphine oxides and sulphides are complexing agents of high stability.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: May 8, 1984
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Wilfrid Bergeret, Jean-Claude Gautier, Serge Raynal, Sylvie Boileau
  • Patent number: 4338435
    Abstract: Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, halogen, trifluoromethyl, aminosulfonyl, nitro, alkyl or alkoxy;R.sub.3 is hydrogen, alkyl, or phenylmethyl;R.sub.4 is hydrogen, alkyl, or phenyl, and R.sub.15 is alkyl, phenyl or phenylmethyl, or R.sub.4 and R.sub.15 together are --(CH.sub.2).sub.m -- wherein m is 1 or 2;R.sub.5,R.sub.6,R.sub.7,R.sub.8,R.sub.9,R.sub.10,R.sub.11,R.sub.12,R.sub.13 and R.sub.14 are each independently hydrogen, halogen, alkyl or phenyl;n.sub.1,n.sub.2,n.sub.3,n.sub.4 and n.sub.5 are each independently 0 or 1;with the proviso that if R.sub.4 and R.sub.15 together are --(CH.sub.2).sub.m -- the sum of n.sub.1, n.sub.2, n.sub.3, n.sub.4, n.sub.5 and m is 2 or 3;have diuretic activity.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: July 6, 1982
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Rudiger D. Haugwitz
  • Patent number: 4295875
    Abstract: New tetrahydro-1,3-oxazines of the formula ##STR1## where R denotes linear or branched haloalkyl of up to 3 carbon atoms, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are identical or different and each denotes hydrogen or linear or branched alkyl of up to 3 carbon atoms, R.sup.6 denotes hydrogen or linear or branched alkyl of up to 8 carbon atoms, R.sup.7 denotes hyrogen, linear or branched alkyl of up to 8 carbon atoms, alkoxyalkyl of up to 6 carbon atoms or dialkoxyalkyl of up to 8 carbon atoms, and R.sup.6 and R.sup.7 may together form a methylene chain of 4 or 5 carbon atoms.The compounds are antagonistic agents and, as such, increase the tolerance of herbicidal acetanilides by crop plants. Herbicidal agents containing the tetrahydro-1,3-oxazines in combination with haloacetanilides are suitable for combating unwanted plant growth in Indian corn and cereal crops.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: October 20, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Wolfgang Rohr, Hans J. Pander, Bruno Wuerzer
  • Patent number: 4287337
    Abstract: The invention relates to spiropyran compounds. They have the general formula (I): ##STR1## in which: X represents the CH.sub.2 group or a sulfur atom; R.sub.1 and R.sub.2 represent electron donor and/or acceptor groups selected for instance from the group NO.sub.2, COC.sub.6 H.sub.5, CN, the halogens, the acyl substituents, alkoxy substituents, the hydrogen atom, the alkyl and mercaptoalkyl groups, the ethers of the formula CH.sub.2 OR, thioethers of the formula CH.sub.2 SR and amines of the formula CH.sub.2 NR.sub.2 in which R represents an alkyl group; R.sub.3 is a linear or branched alkyl group, having 1 to 18 carbon atoms, or an arylalkyl or alkenyl group.--R.sub.4,R.sub.5,R.sub.6,R.sub.7,R.sub.8 and R.sub.9 have one of the meanings indicated for R.sub.3 or represent, two by two, with the group in ortho position, a --(CH.sub.2).sub.n -- group in which n is a number between 5 and 10.R.sub.10 represents a hydrogen atom if X=S and if X=CH.sub.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: September 1, 1981
    Assignee: Etat Francais represente par le Delegue General pour l'Armement
    Inventors: Robert J. Guglielmetti, Francis Garnier, Yves M. Poirier, Gisele M. C. Petillon
  • Patent number: 4277470
    Abstract: Heterocyclic, spiro-linked amidines of the formula I ##STR1## and their physiologically acceptable salts, in which (a) n is 1 or 2; (b) R.sup.1 and R.sup.2 are hydrogen or alkyl radicals which, together with the nitrogen atom, can form a 5-, 6- or 7-membered ring which can be substituted by C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.2 -alkoxy, hydroxyl or C.sub.1 -C.sub.4 -alkoxy-carbonyl groups and in which one of the carbon atoms can also be replaced by an oxygen, sulfur or nitrogen atom, it being possible for the nitrogen atom to be substituted by hydrogen, by the formyl group or by a phenyl radical, which can in turn be monosubstituted or polysubstituted by a C.sub.1 to C.sub.4 -alkyl group or an alkoxy, methylenedioxy, hydroxyl, halogen, nitro or amino group, or it being possible for the nitrogen atom to be substituted by a C.sub.1 -C.sub.4 -alkyl group, or in which R.sup.1 represents hydrogen and R.sup.2 represents a C.sub.5 -C.sub.8 -cycloalkyl radical which can be substituted by C.sub.1 -C.sub.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: July 7, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Forsch, Wolfgang Schaub, Hermann Gerhards
  • Patent number: 4226867
    Abstract: 3,3-Substituted spiro-1,2,4-benzothiadiazines and their use in treating hypertension are disclosed.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: October 7, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Edward J. Cragoe, Jr., Otto W. Woltersdorf, Jr.
  • Patent number: 4119777
    Abstract: A thiazine derivative, which forms a color on contact with an electron accepting material, represented by the formula (II): ##STR1## wherein A.sub.1 and A.sub.2, which may be the same or different, each represents an aryl group or a heterocyclic group and A.sub.1 and A.sub.2 may combine together to form a heterocyclic ring or a fluorene ring, the ring B represents an aromatic hydrocarbon ring or a heterocyclic ring, and Y represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an amino group, an amido group, an oxy group or a thio group, but at least one of A.sub.1 and A.sub.2 or the ring formed by the combination of A.sub.1 and A.sub.2 represents an electron donating aryl group or an electron donating heterocyclic group, and a process for preparing the thiazine derivatives represented by the formula (II) by oxidizing a thioamide derivative represented by the formula (I): ##STR2## wherein A.sub.1, A.sub.2, B and Y are as above described.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: October 10, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideo Usui, Sadao Ishige, Keiso Saeki