Nitrogen Bonded Directly To The 3-position Of The Oxazole Ring Patents (Class 548/246)
  • Patent number: 4756744
    Abstract: The invention relates to certain 3-isoxazolyl-2-imidazolidinone derivatives, namely 3-[5- or 3-substituted-3- or 5-isoxazolyl]-1-substituted-4-substituted amino-2-imidazolidinones and the uses thereof for preemergence or postemergence control of noxious plants, i.e., weeds.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: July 12, 1988
    Assignee: PPG Industries, Inc.
    Inventor: James A. Schwindeman
  • Patent number: 4740231
    Abstract: 1-Aryl-5-alkoximinoalkylamino-pyrazoles of the formula ##STR1## in which R represents cyano or nitro, or represents an optionally substituted heterocyclic radical,R.sup.1 represents hydrogen or alkyl,R.sup.2 represents hydrogen or alkyl, or represents optionally substituted aryl,R.sup.3 represents hydrogen, alkyl or alkenyl, or represents in each case optionally substituted aralkyl or aryl andAr represents optionally substituted phenyl or pyridyl,are active as herbicides and plant growth regulants. Compounds of the formula ##STR2## in which R" has the same definition as R other than cyano, are also active and useful as intermediates as well.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: April 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhold Gehring, Otto Schallner, Jorg Stetter, Hans-Joachim Santel, Robert R. Schmidt, Klaus Lurssen
  • Patent number: 4739083
    Abstract: A new process for preparing a pyrone-3-carboxamide compound of the formula (IV): ##STR1## wherein R.sub.1 is aryl or heterocyclic group optionally substituted, R.sub.2 is alkyl, aralkyl or like group, comprising reacting a compound of the formula (I) or (I'): ##STR2## wherein R.sub.3 is dialkylamino group and n is 0 to 6, and R.sub.1 and R.sub.2 are as above,with a compound of the formula (II): ##STR3## wherein R.sub.4 and R.sub.5 are hydrogen atom, alkyl or like group, or reacting a compound of the formula (III): ##STR4## wherein R.sub.6 is alkyl, aryl or like group, and R.sub.1 and R.sub.2 are as above,with a compound of the formula (II) or diketene in the presence of a tertiary organic base.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: April 19, 1988
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Yoichiro Ueda, Yukihisa Goto, Kazuhisa Masamoto
  • Patent number: 4730004
    Abstract: Certain new 2-oxindole-3-carboxamide compounds having an acyl substituent at the 1-position are inhibitors of the cyclooxygenase (CO) and lipoxygenase (LO) enzymes, and are useful as analgesic and anti-inflammatory agents in mammalian subjects. In particular, the compounds of the invention are useful for acute administration for ameliorating or eliminating pain in human subjects recovering from surgery or trauma, and also for chronic administration for alleviating the symptoms of chronic diseases, such as rheumatoid arthritis and osteoarthritis, in human subjects.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: March 8, 1988
    Assignee: Pfizer Inc.
    Inventor: Saul B. Kadin
  • Patent number: 4725616
    Abstract: 1,3-Dicarboxamidooxindoles as antiinflammatory agents prepared by reaction of the 1-carbamoyloxindole with an isocyanate or by aminolysis of the corresponding alkyl 1-carbamoyloxindole-3-carboxylate.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: February 16, 1988
    Assignee: Pfizer Inc.
    Inventor: Saul B. Kadin
  • Patent number: 4707180
    Abstract: The invention relates to certain 3-isoxazolyl-2-imidazolidinone derivatives, namely 3-[5- or 3-substituted-3- or -5-isoxazolyl]-1-substituted-4- or 5-substituted amino-2-imidazolidinones and the use thereof for preemergence or postemergence control of noxious plants, i.e., weeds.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: November 17, 1987
    Assignee: PPG Industries, Inc.
    Inventor: James A. Schwindeman
  • Patent number: 4695567
    Abstract: The present invention provided pyrrolobenzimidazoles or tautomer thereof, of the general formula: ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.3 -C.sub.7 cycloalkyl;R.sub.2 is hydrogen, cyano, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, or a carbonyl group substituted by hydroxyl, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkyoxy, amino, C.sub.1 -C.sub.6 alkylamino, C.sub.2 -C.sub.12 dialkylamino or hydrazino, orR.sub.2 and R.sub.1 together with the carbon to which they are attached form a C.sub.3 -C.sub.8 spirocycloalkyl ring, or R.sub.1 and R.sub.2 together form C.sub.3 -C.sub.7 alkylidene or C.sub.3 -C.sub.7 cycloalkylkidene,X is a valency bond, C.sub.1 -C.sub.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: September 22, 1987
    Assignee: Boehringer Mannheim GmbH
    Inventors: Alfred Mertens, Jens-Peter Holck, Herbert Berger, Bernd Muller-Beckmann, Klaus Strein, Egon Roesch
  • Patent number: 4695571
    Abstract: Tricyclic oxindole carboxamides, prepared by (a) reaction of an isocyanate with the basic ring system or (b) ammonolysis of a corresponding alkyl ester, are non-steroidal antiinflammatory agents useful in the treatment of rheumatoid arthritis.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: September 22, 1987
    Assignee: Pfizer Inc.
    Inventor: Lawrence S. Melvin
  • Patent number: 4689071
    Abstract: This invention relates to certain 3-isoxazolyl-2-imidazolidinone derivatives, namely 3-[5- or 3-substituted -3- or -5-isoxazolyl]-1-,4- or 5-substituted-2-imidazolidinones and the use thereof for preemergence or post-emergence control of noxious plants, i.e., weeds.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: August 25, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Muppala S. Raju, Jerome M. Lavanish
  • Patent number: 4687857
    Abstract: Novel alkyl .beta.-oxo-benzenepropanoates of the formula ##STR1## wherein X is in the 5-,6-,7- or 8-position and is selected from the group consisting of hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 4 carbon atoms, CF.sub.3 --, CF.sub.3 S-- and CF.sub.3 O--, R.sub.1 ' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 ' is selected from the group consisting of hydrogen, thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl, tetrazolyl, thienyl, benzothiazolyl and phenyl optionally substituted with at least one member of the group consisting of halogen, alkoxy of 1 to 4 carbon atoms, hydroxy, phenyl, CF.sub.3 --, NO.sub.2 -- alkyl of 1 to 4 carbon atoms and alkyl of 1 to 4 carbon atoms substituted with amino, alkylamino or dialkylamino with alkyls of 1 to 3 carbon atoms or R.sub.1 ' and R.sub.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: August 18, 1987
    Assignee: Roussel Uclaf
    Inventors: Francois Clemence, Odile Le Martret
  • Patent number: 4686224
    Abstract: Ketone containing 1-substituted oxindole-3-carboxamides as antiinflammatory agents prepared by reaction of the 1-substituted oxindole with an isocyanate or by aminolysis of the corresponding alkyl oxindole-3-carboxylate.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: August 11, 1987
    Assignee: Pfizer Inc.
    Inventor: Lawrence S. Melvin, Jr.
  • Patent number: 4666502
    Abstract: The invention provides 5-membered heteroaromatic compounds of formula IArN(Y)COCH.sub.2 Cl Iwherein Ar is a 5-membered heteroaromatic group comprising 1 or 2 heteroatoms selected from O, S and N and linked by a ring C-atom to the N-atom of the N(Y)COCH.sub.2 Cl group to which it is bound, whereby where Ar is pyrazolyl, said N(Y)COCH.sub.2 Cl group is in the 4-position,and Y is as specified in the description,the use of these compounds as herbicides, compositions for facilitating such use and the preparation of the chloroacetamides.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: May 19, 1987
    Assignee: Sandoz Ltd.
    Inventors: Karl Seckinger, Fred Kuhnen, Karlheinz Milzner
  • Patent number: 4663341
    Abstract: This invention relates to N-aryl-3-aryl-4,5-dihydro-1H-pyrazole-1-carboxamide compounds which are useful as pesticides, compositions containing those compounds, methods of controlling pests and processes for preparing these compounds.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: May 5, 1987
    Assignee: Rohm and Haas Company
    Inventor: Richard M. Jacobson
  • Patent number: 4659836
    Abstract: Imidazolidinone imines are provided as well as a process for preparing same including corresponding imidazolidinone amines which compounds are useful as herbicides.
    Type: Grant
    Filed: August 5, 1986
    Date of Patent: April 21, 1987
    Assignee: PPG Industries, Inc.
    Inventor: James A. Schwindeman
  • Patent number: 4593024
    Abstract: Novel dihydroisoxazole compounds are disclosed having activity against parasitic worms and showing little or no toxicity to the host animal. These compounds are 3-chloro-4-dialkylaminophthaloylamino-4,5-dihydroisoxazoles and 3-dialkylamino-4-dialkylaminophthaloylamino-4,5-dihydroisoxazoles. A process for making these compounds and a method of administering them to infested animals is also disclosed.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: June 3, 1986
    Assignee: International Minerals & Chemical Corp.
    Inventors: Jing-jong Lu, Herbert L. Wehrmeister
  • Patent number: 4588817
    Abstract: Novel antibacterially-active esters of antibiotic nodusmicin. Activity is demonstrated against Staphylococcus aureus, Streptococcus pyogenes, and Sarcina lutea. Thus, these esters can be used in various known environments, using well-known procedures, to eradicate or control susceptible microbes.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: May 13, 1986
    Assignee: The Upjohn Company
    Inventors: Barney J. Magerlein, Howard A. Whaley
  • Patent number: 4581458
    Abstract: 4-Hydroxy-N-[5-[(substituted hetero)methyl]-3-isoxazolyl]-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxides as agents for treating pain in mammals resulting from inflammation.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 8, 1986
    Assignee: Warner-Lambert Company
    Inventors: Jagadish C. Sircar, Thomas Capiris
  • Patent number: 4576956
    Abstract: New (2-propynylamino)isoxazole and (3-iodo-2-propynylamino)isoxazole derivatives having anti-microbial activity which are used as active ingredients in anti-microbial compositions for medical use, for agricultural use and also for veterinary use.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: March 18, 1986
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yasuo Makisumi, Akira Murabayashi, Katsuya Tawara, Yoshihachi Watanabe, Toshio Takahashi, Takao Konishi
  • Patent number: 4529435
    Abstract: This invention concerns certain 3-(3- or 5-substituted-5- or -3-yl)-1-substituted-1-(2,2-substituted)ureas having herbicidal activity, and their use to control weeds.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: July 16, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Jerome M. Lavanish
  • Patent number: 4526977
    Abstract: 7-[2-(3-Amino-5-isoxazolyl)-2-alkyloxyiminoacetamido]-ceph-3-em-4-carboxyli c acid derivatives are antibacterial agents effective against gram-positive and gram-negative bacterium.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: July 2, 1985
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, John R. Potoski
  • Patent number: 4514571
    Abstract: A process for the preparation of a urea derivative having the formula: ##STR1## in which A represents a straight- or branched-chain alkyl group having 1-20 carbon atoms, an aryl group, or a heterocyclic group, and each of R.sup.1 and R.sup.2 represents hydrogen, a straight- or branched-chain alkyl group having 1-20 carbon atoms, an alicyclic group, or an aryl groups, which comprises:reacting sodium salt of an N-halogenamide with a quaternary ammonium salt to obtain its addition salt and then,reacting said addition salt with an amine derivative in the absence or presence of an organic solvent.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: April 30, 1985
    Assignee: UBE Industries, Ltd.
    Inventors: Mamoru Nakai, Fumio Iwata, Teruhiko Inoue
  • Patent number: 4500343
    Abstract: 1-Heterocyclic-2-pyrrolidinone analogs, and intermediates thereof, as aquatic and terrestrial herbicides and aquatic algicides. The compounds and intermediates can also be used together with one or more herbicides to provide useful terrestrial herbicidal combinations.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 19, 1985
    Assignee: Eli Lilly and Company
    Inventor: Kenneth W. Burow, Jr.
  • Patent number: 4471123
    Abstract: Herbicidal isoxazolyl imidazolidinones are prepared by reaction of an isoxazolyl-allylurea with ozone and reduction.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: September 11, 1984
    Assignee: Eli Lilly and Company
    Inventors: David L. Varie, John C. Lechleiter
  • Patent number: 4464374
    Abstract: The invention relates to a guanidine derivative of the formula: ##STR1## in which W is a 2-6C alkylene chain optionally substituted by 1 or 2 1-4C alkyls; E is O, S, SO, SO.sub.2 or NR.sup.3 in which R.sup.3 is H or 1-6C alkyl; R.sup.1 is H or a straight chain 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls; or R.sup.1 and R.sup.3 are joined to form a morpholine, pyrrolidine, piperidine or piperazine ring; X, P, Y, Q and R.sup.2 are as defined in the specification, and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing process, pharmaceutical compositions and intermediates are also described. The compounds of the formula I are histamine H-2 antagonists.
    Type: Grant
    Filed: July 23, 1981
    Date of Patent: August 7, 1984
    Assignees: ICI Americas Inc., Imperial Chemical Industries PLC
    Inventors: Tobias O. Yellin, David J. Gilman, Derrick F. Jones, Keith Oldham
  • Patent number: 4448975
    Abstract: Amidines are one of the strongest organic bases and find application where this property is needed, such as in phase transfer catalysis in the form of their substituted derivatives. Their use, however, has been hampered by their expensive nature due to only mediocre yields in their preparation. The present invention provides a process for the preparation of substituted amidines in essentially quantitative yields.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: May 15, 1984
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Patent number: 4430336
    Abstract: N-Substituted 2-methylnaphthylamides of the general formula ##STR1## where R.sup.1 is ##STR2## R.sup.3 being hydrogen or alkoxy, or R.sup.1 is ##STR3## R.sup.4 and R.sup.5 being unsubstituted or substituted alkyl, or R.sup.4 and R.sup.5 together forming a heterocyclic ring which contains two oxygen atoms and is unsubstituted or substituted by alkyl or aryl,R.sup.2 is alkyl which is unsubstituted or substituted by halogen, alkoxy, imidazolyl, pyrazolyl or oxo (.dbd.O), or is alkenyl, alkynyl, cycloalkenyl or alkoxy, or substituted or unsubstituted phenyl, or substituted or unsubstituted hetaryl andX is hydrogen, methyl or halogen, fungicides containing these compounds, and processes for the preparation of the compounds.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: February 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Costin Rentzea, Bernd Zeeh, Ernst-Heinrich Pommer
  • Patent number: 4396621
    Abstract: Oxothia compounds, especially 2-oxo-2,3-dihydro-benzo[b]-thiophene compounds of the formula ##STR1## in which Ph represents an optionally substituted 1,2-phenylene radical, X represents oxygen or sulphur, R.sub.1 represents an organic radical bonded via a carbon atom and R.sub.2 denotes hydrogen or an optionally substituted hydrocarbon radical of aliphatic character, and their salts are useful as peripheral analgetics and/or as antiphlogistic uricosuric and/or thrombolytic agents.
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: August 2, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Bernasconi, Pier G. Ferrini, Richard Goschke, Jacques Gosteli
  • Patent number: 4394504
    Abstract: 7-[2-(3-Amino-5-isoxazolyl)-2-alkyloxy-iminoacetamido]-ceph-3-em-4-carboxyl ic acid derivatives are antibacterial agents effective against gram-positive and gram-negative bacterium.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: July 19, 1983
    Assignee: American Home Products Corporation
    Inventors: Thomas J. Commons, John R. Potoski
  • Patent number: 4394510
    Abstract: The herbicide 1-(5-t-butylisoxazol-3-yl)-3,3-dimethylurea is prepared in high yield and high purity by a multiple-step process without the isolation of intermediate products.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: July 19, 1983
    Assignee: Eli Lilly and Company
    Inventor: Eddie V. P. Tao
  • Patent number: 4388316
    Abstract: Broad spectrum cephalosporin antibiotics represented by the formula, ##STR1## pharmaceutical compositions of the antibiotics, and a method for treating infections are provided. In the formula, R is 2-aminooxazol-4-yl, 5-amino-1,2,4-oxadiazol-3-yl or 5-aminoisoxazol-3-yl; R' is eg. C.sub.1 -C.sub.4 alkyl; R.sub.1 is H, NH.sub.2, chloro, C.sub.1 -C.sub.4 NH--, (C.sub.1 -C.sub.4).sub.2 N--, etc. The antibiotics are best prepared by reacting a pyrazine with a 3-iodomethyl cephalosporin.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: June 14, 1983
    Assignee: Eli Lilly and Company
    Inventors: William H. W. Lunn, William J. Wheeler
  • Patent number: 4376774
    Abstract: This invention relates to a new class of thienamycins (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics: ##STR1## wherein the stylized radical (hereafter referred to as R'): ##STR2## attached to the amino nitrogen group of thienamycin represents a mono- or polycyclic N-containing heterocyclic group; R is, inter alia, hydrogen, substituted and unsubstituted: alkyl, aryl, alkenyl, heterocyclylalkenyl, aralkenyl, heterocyclylalkyl, aralkyl, --NR.sub.2, COOR, CONR.sub.2, --OR, or CN.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: March 15, 1983
    Assignee: Merck & Co., Inc.
    Inventor: John Hannah
  • Patent number: 4372963
    Abstract: Bisamidines carrying one unsaturated nitrogen heterocyclo-containing substituent, representative of which i; 1-[N'-(2-(5-methyl-4-imidazolyl)methylthio)ethyl)guanidino]-8-[N'-methylgu anidino]octane, are histamine H.sub.2 -antagonists.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: February 8, 1983
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Graham J. Durant, Peter D. Miles
  • Patent number: 4342764
    Abstract: The invention relates to guanidine derivatives, particularly to substituted guanidines of the formula ##STR1## having hypoglycaemic activity, for the oral treatment of hyperglycaemia in mammals, especially for the oral treatment of Diabetes mellitus.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: August 3, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Atso Ilvespaa, Jorg Frei, Ernst Schweizer
  • Patent number: 4336264
    Abstract: The present invention is directed to 1-(benzoyl)-3-(isoxazolyl or benzisoxazolyl)urea or thiourea compounds useful as insecticides.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: June 22, 1982
    Assignee: Eli Lilly and Company
    Inventor: David I. Wickiser
  • Patent number: 4322429
    Abstract: The present invention is directed to isoxazolyl and benzisoxazolyl benzamide compounds useful as insecticides.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: March 30, 1982
    Assignee: Eli Lilly and Company
    Inventor: Kenneth W. Burow, Jr.
  • Patent number: 4298744
    Abstract: Chemical process for preparing AT-125 and its analogs and intermediates used in the process.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: November 3, 1981
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, Wendell Wierenga
  • Patent number: 4293328
    Abstract: Herbicidal compounds represented by the formula: ##STR1## wherein R is t-butyl; R.sup.1 is hydrogen or methyl; R.sup.2 is alkyl (C.sub.2 to C.sub.6), alkenyl (C.sub.3 to C.sub.4) or cyclopropyl; and X is hydrogen or halogen; and herbicidal compositions containing them.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: October 6, 1981
    Assignee: Shionogi & Co., Ltd.
    Inventors: Hisajiro Yukinaga, Shinzaburo Sumimoto, Ichiro Ishizuka, Jitsuo Sugita
  • Patent number: 4259501
    Abstract: 3-Amino-5-(t-butyl)isoxazole, in optimum yield, is prepared in a stepwise manner by reacting a lower alkyl pivalate and acetonitrile in the presence of a base to yield pivalyl acetonitrile, which in turn is allowed to react with hydroxylamine under controlled conditions of pH to yield the desired compound. The compound is a useful intermediate for the preparation of isoxazole derivatives having utility as herbicides.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: March 31, 1981
    Assignee: Eli Lilly and Company
    Inventors: Kenneth W. Burow, Jr., Richard F. Eizember
  • Patent number: 4256899
    Abstract: 3-Amino-5-t-butylisoxazole is prepared by reacting pivaloylacetonitrile with hydroxylamine in aqueous medium under basic conditions and treating the reaction products with an acid. The process is economical and industrial.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: March 17, 1981
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yasuo Makisumi, Akira Murabayashi, Akira Takase, Ichiro Ishizuka, Shinzaburo Sumimoto
  • Patent number: 4256898
    Abstract: Chemical process for preparing AT-125 and its analogs and intermediates used in the process.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: March 17, 1981
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, Wendell Wierenga
  • Patent number: 4246272
    Abstract: The invention relates to a compound selected from the group consisting of compounds of the formula: ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are independently selected from hydrogen, halogen, trifluoromethyl, nitro, C.sub.1-4 alkoxy and C.sub.1-4 alkyl,R.sub.4 represents a heterocyclic radical selected from the radicals having the formulae ##STR2## in which R.sub.5 and R.sub.6 are independently selected from hydrogen, C.sub.1-4 alkyl, phenyl and halophenyl,R.sub.7 is selected from hydrogen and C.sub.1-4 alkyl, and a pharmaceutically acceptable acid addition salt thereof. These compounds are useful for the treatment of gastric ulcers.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: January 20, 1981
    Assignee: Aron S.A.
    Inventor: Michel Noel
  • Patent number: 4225721
    Abstract: Novel amidoxime derivatives having the following structural formula (IV) or (IV'): ##STR1## wherein R.sub.1 represents methyl or ethyl group and R.sub.2 represents hydrogen or methyl group, useful as a raw material for 3-amino-5-methyl isoxazole, are prepared from .beta.-amino crotonitrile. Said isoxazole, useful as an intermediate for various medicines, may be prepared without producing any by-products of isomer.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: September 30, 1980
    Assignee: Sogo Pharmaceutical Company, Ltd.
    Inventors: Masataka Kuroki, Sadamitsu Kono, Kazuyuki Shioka
  • Patent number: 4224445
    Abstract: The present invention relates to compounds of the formula ##STR1## wherein A together with the two carbon atoms to which it is attached forms the group ##STR2## and the broken line represents the double bond in group (a); R.sub.1 represents a lower alkyl group; R.sub.2 represents the residue of an aromatic heterocyclic ring containing from 1 to 4 hetero atoms, which may be substituted by one or two lower alkyl groups, or a phenyl group which may be substituted by halogen, hydroxy, lower alkyl, trifluoromethyl or lower alkoxy and R.sub.3 and R.sub.4 each represent a hydrogen atom or a lower alkyl group.Also provided are methods for their preparation. The thienothiazine derivatives provided by this invention have anti-flammatory, analgesic and anti-rheumatic activity.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: September 23, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Otto Hromatka, Dieter Binder, Rudolf Pfister, Paul Zeller
  • Patent number: 4212981
    Abstract: 3-Isoxazolylurea derivatives of the formula: ##STR1## (wherein R represents hydrogen, C.sub.1 -C.sub.6 alkyl, or C.sub.6 -C.sub.8 aryl; R.sup.1 represents hydrogen or C.sub.1 -C.sub.6 alkyl; R.sup.2 represents C.sub.1 -C.sub.6 alkyl, C.sub.6 -C.sub.8 aralkyl, or C.sub.6 -C.sub.8 aryl; or ##STR2## represents pyrrolidino, piperidino, morpholino, or 4-alkylpiperazino; X represents hydrogen or halogen; or R and X may optionally form C.sub.3 -C.sub.5 alkylene), are prepared by reacting a carboxamide of the formula: ##STR3## (wherein R and X each is as defined above) with an amine of the formula:R.sup.1 --NH--R.sup.2(wherein R.sup.1 and R.sup.2 each is as defined above) in the presence of an alkaline hypohalite and an alkaline hydroxide in an inert solvent medium.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: July 15, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Hisajiro Yukinaga, Shinzaburo Sumimoto, Ichiro Ishizuka, Jitsuo Sugita
  • Patent number: 4200757
    Abstract: 3-Aminoisoxazoles of the formula: ##STR1## (wherein R is C.sub.1 -C.sub.6 alkyl, phenyl or halo-phenyl) are prepared by reacting a .beta.-ketonitrile of the formula:R--CO--CH.sub.2 CN(wherein R is as defined above) with a compound of the formula:HY(wherein Y is C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.6 alkylthio) in the presence of an acid in a solvent to give an iminium salt of the formula: ##STR2## (wherein X is the residue of said acid; R and Y are each as defined above) and further reacting the iminium salt with hydroxylamine in an inert solvent.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: April 29, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yasuo Makisumi, Akira Murabayashi, Takashi Sasatani
  • Patent number: 4191769
    Abstract: The compounds are N-(heterocyclomethylthioalkyl) derivatives of alkylguanidines, C-alkyl and C-aryl amidines and S-alkylisothioureas. The compounds may also have N'-lower alkyl or N'(heterocyclomethylthioalkyl) substituents. Three compounds of the invention are S-methyl-N-[2-(5-methyl-4-imidazolylmethylthio)ethyl]isothiourea, N,N'-bis-[2-(5-methyl-4-imidazolylmethylthio)ethyl]acetamidine, N,N'-bis-[2-(5-methyl-4-imidazolylmethylthio)ethyl]N"-methylguanidine. The compounds of this invention are histamine H.sub.2 -antagonists.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: March 4, 1980
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Graham J. Durant, Charon R. Ganellin, Rodney C. Young
  • Patent number: 4190728
    Abstract: Lower alkyl 2-chloro-2-hydroxyiminoacetates are produced by (A) reacting chloral with a lower alkanol and a hydroxylamine salt in the presence of a Lewis acid or a metal oxide which is convertible into said Lewis acid during the course of the reaction to give a lower alkyl 2-hydroxyiminoacetate and then chlorinating the resulting product or (B) reacting chloral oxime with a lower alkanol in the presence of a base to give a lower alkyl 2-hydroxyiminoacetate and finally chlorinating the thus formed product.
    Type: Grant
    Filed: April 11, 1978
    Date of Patent: February 26, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Ikuo Adachi, Teruo Yamamori, Yoshiharu Hiramatsu
  • Patent number: 4183856
    Abstract: Urea derivatives of the formula ##STR1## (wherein Ar represents a residue of 5- or 6-membered heteroaromatic ring; R represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group; R.sup.1 represents a C.sub.1 -C.sub.6 alkyl group; and R.sup.2 represents a C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, or C.sub.1 -C.sub.6 alkoxy group) are produced by reacting an amine of the formulaAr--NH--R(wherein Ar and R have the significance given above) with a carbamoyl halogenide of the formula ##STR2## (wherein X represents a halogen atom, and R.sup.1 and R.sup.2 have the significance given above) in the presence of a Lewis acid in an inert solvent.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: January 15, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yasuo Makisumi, Takashi Sasatani, Akira Murabayashi