Plural Acyclic Nitrogens Bonded Directly To The Same Carbon Or Single Bonded Directly To Each Other Patents (Class 546/306)
  • Patent number: 4418198
    Abstract: The invention is directed to the novel 2-(((substituted pyridinyl)carbonyl)amino)ethyl esters of 2-methyl-2-propenoic acid and their method of preparation. The compounds are prepared by reacting an appropriately substituted pyridinol, pyridinethiol, aminopyridine, or hydroxyalkyloxypyridine with isocyanatoethyl methacrylate in an appropriate solvent in the presence of an activating agent. These compounds may be utilized as herbicides, fungicides, or both.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: November 29, 1983
    Assignee: The Dow Chemical Company
    Inventor: Chester E. Pawloski
  • Patent number: 4412856
    Abstract: The novel compounds of the formula I are useful selective herbicides for postemergence application in crops of cereals, maize and rice.In formula I, ##STR1## A is an unsubstituted or substituted amino group, Q is a C.sub.2 -C.sub.6 alkylene bridge, Y is an oxygen or sulfur atom or an unsubstituted or substituted nitrogen atom, and Z is an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical, which phenyl radical, containing the bridge member Y, can additionally carry one to four further substituents.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: November 1, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Georg Brunner, Rolf Schurter, Henry Szczepanski
  • Patent number: 4387099
    Abstract: Novel 1-heterocyclyloxy- or 1-aryloxy-3-amido-alkylamino-2-propanol derivatives, processes for their manufacture, pharmaceutical compositions containing them and methods of using them in the treatment of heart diseases. The compounds possess .beta.-adrenergic blocking activity. Representative of the compounds disclosed is 1-(4-indolyloxy)-3-.beta.-isobutyramidoethylamino-2-propanol.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: June 7, 1983
    Assignee: Imperial Chemical Industries Limited
    Inventor: Leslie H. Smith
  • Patent number: 4376735
    Abstract: Novel N-(sulphenamide)-acyl isocyanates of the formula ##STR1## in which R.sup.1 represents a thrihalogenomethyl radical andR.sup.2 represents an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicalare useful as intermediates for reaction with amines to produce the corresponding fungicidally active biurets.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: March 15, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Engelbert Kuhle, Hermann Hagemann
  • Patent number: 4372778
    Abstract: N-(Pyridinylaminocarbonyl)benzenesulfonamides are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Patent number: 4358606
    Abstract: Novel esters of phenylalkyloxy- or phenylalkylthioacylamino acids and pyridylalkyloxy- or pyridylalkylthioacylamino acids, synthesis thereof, intermediates therefor, and the use of said esters for the control of weeds.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: November 9, 1982
    Assignee: Zoecon Corporation
    Inventors: Shy-Fuh Lee, Clive A. Henrick
  • Patent number: 4347250
    Abstract: The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: August 31, 1982
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Graham J. Durant, Charon R. Ganellin, Geoffrey R. Owen, Rodney C. Young
  • Patent number: 4345083
    Abstract: (1-Methyl-2-pyridinylidene) and (1-methyl-2-quinolinylidene) derivatives of guanidine having hypoglycemic activity.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: August 17, 1982
    Assignee: McNeilab, Inc.
    Inventor: Chris R. Rasmussen
  • Patent number: 4338321
    Abstract: 2,6-Dihalobenzoyl 5-substituted-2-pyridinyl ureas are potent insecticides. A method of reducing a population of manure-breeding insects is also provided.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: July 6, 1982
    Assignee: Eli Lilly and Company
    Inventor: John L. Miesel
  • Patent number: 4331669
    Abstract: A compound having the formula ##STR1## wherein R is halogen, trichloromethyl, trifluoromethyl, nitro, cyano, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; X is NH, O or S and n is an integer of from 1 to 5, which is useful as a fungicide on plants and other substrates susceptible to fungicidal attack.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: May 25, 1982
    Assignee: Dow Chemical Company Limited, England
    Inventor: David P. Clifford
  • Patent number: 4308054
    Abstract: N-(2,6-disubstituted 4-pyridyl)-N'-phenylurea compounds are plant growth regulators having potent cytokinin activity. N-(2,6-dichloro-4-pyridyl)-N'-phenylurea is useful for regulating plant growth.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: December 29, 1981
    Inventors: Yo Isogai, Soshiro Takahashi, Koichi Shudo, Toshihiko Okamoto
  • Patent number: 4297498
    Abstract: A series of 2,6-diamino-4-tertiary-amino-pyridine 1-oxides is disclosed. Substituents in the 4-position include diethylamino, pyrrolidinyl, piperidino, morpholino, thiomorpholino, and N-methylpiperazino. Novel oxadiazolones such as 5-amino-7-(1-piperidinyl)-2H-[1,2,4]oxadiazolo[2,3-a]pyridine-2-one which are useful in the preparation of the pyridine 1-oxides are also disclosed. The compounds of this invention lower blood pressure in normotensive and hypertensive mammals and are particularly useful in the treatment of hypertensive conditions in mammals. 2,6-Diamino-4-(1-piperidinyl)pyridine 1-oxide is a representative embodiment of the invention.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: October 27, 1981
    Assignee: Mead Johnson & Company
    Inventors: John E. Lawson, Ronald D. Dennis
  • Patent number: 4293330
    Abstract: N-(Pyridinylaminocarbonyl)benzenesulfonamides are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: October 6, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Patent number: 4287346
    Abstract: Novel cyanoguanidine derivatives, and acid addition salts thereof useful as medicines which have pharmacological actions such as anti-secretory effect, local anesthesia action and the like; and process for the preparation thereof.
    Type: Grant
    Filed: February 12, 1980
    Date of Patent: September 1, 1981
    Assignee: Eisai Co., Ltd.
    Inventors: Satoru Tanaka, Katsutoshi Shimada, Kazunori Hashimoto, Kiichi Ema, Koichiro Udea
  • Patent number: 4285952
    Abstract: Bisamidines carrying one unsaturated nitrogen heterocycle-containing substituent, representative of which is 1-[N'-(2-(5-methyl-4-imidazolyl)methylthio)ethyl)guanidino]-8-[N'-methylgu anidino]octane, are histamine H.sub.2 -antagonists.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: August 25, 1981
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Graham J. Durant, Peter D. Miles
  • Patent number: 4282363
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is a straight or branched chain alkynyl group containing from 3 to 9 carbon atoms, inclusive; R.sup.2 is hydrogen, hydroxy, cyano, (lower)alkyl, (lower)alkoxy, halogen or amino; n is 2 or 3; X is NR.sup.3 or CHR.sup.3 ; R.sup.3 is cyano, nitro, SO.sub.2 Ar; or SO.sub.2 (lower)alkyl; R.sup.12 is hydrogen or (CH.sub.2).sub.p NR.sup.13 R.sup.14 ; p is an integer of from 1 to 4, inclusive; R.sup.13 and R.sup.14 each are independently hydrogen or (lower)alkyl; and Ar is phenyl or phenyl containing 1 or 2 substituents independently selected from halogen and (lower)alkyl; and nontoxic, pharmaceutically acceptable salts thereof, are potent anti-ulcer agents.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: August 4, 1981
    Assignee: Bristol-Myers Company
    Inventors: Aldo A. Algieri, Ronnie R. Crenshaw
  • Patent number: 4281003
    Abstract: 2,6-Dihalobenzoyl 5-substituted-2-pyridinyl ureas are potent insecticides. A method of reducing a population of manure-breeding insects is also provided.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: July 28, 1981
    Assignee: Eli Lilly and Company
    Inventor: John L. Miesel
  • Patent number: 4281004
    Abstract: A series of phenylguanidine base compounds and their pharmaceutically acceptable acid addition salts have been found to be active as oral hypoglycemic agents. Preferred member compounds include N,N'-diphenyl-1-pyrrolidinocarboxamidine, N-phenyl-N'-methyl-N'-phenyl-1-pyrrolidinocarboxamidine and N-phenyl-N'-(p-chlorophenyl)-1-pyrrolidinocarboxamidine, and their hydrohalide acid addition salts. Synthetic routes leading to these compounds are described.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: July 28, 1981
    Assignee: Pfizer Inc.
    Inventor: Jeffrey L. Ives
  • Patent number: 4279639
    Abstract: Plant growth and suppression regulators of the N-(2-substituted-4-pyridyl)urea and thiourea type are provided, which exhibit excellent cytokinin-like activities and are thus useful for regulating plant growth in various fashions, such as acceleration of growth when used in flowering or fruiting at a controlled time when used in small amounts, and controlling compositions such as sugar, alkaloids, etc. of plants, or suppression of plant growth when used in an amount higher than optimal for growth acceleration, etc.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: July 21, 1981
    Assignees: Toshihiko Okamoto, Yo Isogai, Koichi Shudo, Susumu Sato
    Inventors: Toshihiko Okamoto, Yo Isogai, Koichi Shudo, Soshiro Takahashi
  • Patent number: 4276290
    Abstract: This invention relates to novel anthelmintic compounds containing an arylene or divalent heterocyclic ring whose free valences are satisfied by(1) a disubstituted phosphoryl ureido or thioureido group and(2) an amino group or a substituted amido or thioamido group,to compositions containing them, and to methods of using them for the treatment of intestinal parasites in mammals and birds.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: June 30, 1981
    Assignee: Rohm and Haas Company
    Inventors: W. David Weir, Edward E. Kilbourn
  • Patent number: 4269837
    Abstract: Novel guanylamidines and the pharmaceutically acceptable acid addition salts thereof having activity as hypoglycemic agents are disclosed.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: May 26, 1981
    Assignee: Pfizer Inc.
    Inventors: David S. Watt, Jeffrey L. Ives
  • Patent number: 4266062
    Abstract: (1-Methyl-2-pyridinylidene) and (1-methyl-2-quinolinylidene) derivatives of guanidine having hypoglycemic activity.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: May 5, 1981
    Assignee: McNeilab, Inc.
    Inventor: Chris R. Rasmussen
  • Patent number: 4260767
    Abstract: 2-Pyridylhydrazides useful as antiinflammatory agents.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: April 7, 1981
    Assignee: American Cyanamid Company
    Inventor: John P. Dusza
  • Patent number: 4256752
    Abstract: There are prepared compounds corresponding to the formula ##STR1## in which X is a 5-membered or 6-membered aromatic heterocyclic radical which is attached through a carbon atom to the adjacent CH.sub.2 -group and which contains from 1 to 3 nitrogen atoms or one nitrogen atom and one oxygen or sulphur atom, and which may be substituted once or twice by substituents defined hereinbelow, each R.sup.1 represents hydrogen or a C.sub.1 -C.sub.4 -alkyl group, Alk represents a C.sub.2 -C.sub.6 -alkylene chain and Ac is defined hereinbelow and their salts.
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: March 17, 1981
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter von Bebenburg, Norbert Schulmeyer, Istvan Szelenyi
  • Patent number: 4252959
    Abstract: Certain sulfonylhydrazines, metal complexes thereof and solutions of said compounds in essentially water-immiscible, liquid hydrocarbon solvents are disclosed. The sulfonylhydrazines have the general structural formula:R--SO.sub.2 NHNH--R.sub.1wherein R and R.sub.1 are as defined in the specification and claims hereof. Particular metal values are recovered from their aqueous solutions by using sulfonylhydrazines dissolved in essentially water-immiscible, liquid hydrocarbon solvents. The extraction process involves contacting the metal value containing aqueous solution with the solution of the sulfonylhydrazines in essentially water-immiscible, liquid hydrocarbon solvent and stripping the metal from the loaded organic phase.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: February 24, 1981
    Assignee: Henkel Corporation
    Inventor: Ernest Spitzner
  • Patent number: 4250316
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is a straight or branched chain alkynyl group containing from 3 to 9 carbon atoms, inclusive; R.sup.2 is hydrogen, hydroxy, cyano, (lower)alkyl, (lower)alkoxy, halogen or amino; n is 2 or 3; X is NR.sup.3 or CHR.sup.3 ; R.sup.3 is cyano, nitro, SO.sub.2 Ar; or SO.sub.2 (lower)alkyl; R.sup.12 is hydrogen or (CH.sub.2).sub.p NR.sup.13 R.sup.14 ; p is an integer of from 1 to 4, inclusive; R.sup.13 and R.sup.14 each are independently hydrogen or (lower)alkyl; and Ar is phenyl or phenyl containing 1 or 2 substituents independently selected from halogen and (lower)alkyl; and nontoxic, pharmaceutically acceptable salts thereof, are potent anti-ulcer agents.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: February 10, 1981
    Assignee: Bristol-Myers Company
    Inventors: Aldo A. Algieri, Ronnie R. Crenshaw
  • Patent number: 4244950
    Abstract: This invention relates to new derivatives of 4-amino-3-sulfonamido-pyridine having diuretic properties.The new derivatives of pyridine may be represented by the following general formula: ##STR1## in which R.sub.1 represents hydrogen or an alkyl, cycloalkyl, carbamoyl or sulfonamido radical;R.sub.2 represents an alkyl, halogenoalkyl, cycloalkyl, alkenyl, alkynyl, hydroxyalkyl, alkoxyalkyl, phenyl (possibly substituted), phenylalkyl, diphenylmethyl, isobornyl, furfuryl, tetrahydrofurfuryl, dialkylaminoalkyl or heterocyclic radical; or R.sub.1 and R.sub.2 form together with the nitrogen atom a saturated heterocyclic radical; andX represents an alkoxy radical, an heterocyclic amino radical, or a secondary or tertiary amino radical having its first substituent selected from hydrogen and the alkyl and alkenyl groups, and its second substituent selected from the alkyl, alkenyl, alkynyl, hydroxyalkyl, diphenylmethyl, isorbornyl, furfuryl, tetrahydrofurfuryl, phenylalkyl and heterocyclic groups.
    Type: Grant
    Filed: January 24, 1979
    Date of Patent: January 13, 1981
    Assignee: A. Christiaens Societe Anonyme
    Inventors: Rene R. De Ridder, Andre H. Georges, Arlette Ghys, Charles L. Lapiere, Jacques E. Delarge, Leopold N. Thunus
  • Patent number: 4225717
    Abstract: 2-Hydrazino-3-pyridinol-1-oxide hydrobromide is a useful antibacterial agent.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: September 30, 1980
    Assignee: Morton-Norwich Products, Inc.
    Inventor: George C. Wright
  • Patent number: 4219557
    Abstract: The present invention is directed to 1-(2,6-dihalobenzoyl)-3-(5-substituted-2-pyridinyl)urea compounds useful as insecticides.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: August 26, 1980
    Assignee: Eli Lilly and Company
    Inventor: John L. Miesel
  • Patent number: 4216327
    Abstract: 2-(2-Acetylhydrazino)-4-nitropyridine 1-oxide is a useful antibacterial agent.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: August 5, 1980
    Assignee: Morton-Norwich Products, Inc.
    Inventor: George C. Wright
  • Patent number: 4212875
    Abstract: Bisamidines carrying one unsaturated nitrogen heterocycle-containing substituent, representative of which is 1-[N'-(2-(5-methyl-4-imidazolyl)methylthio)ethyl)guanidino]-8-[N'-methyl-g uanidino]octane, are histamine H.sub.2 -antagonists.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: July 15, 1980
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Graham J. Durant, Peter D. Miles
  • Patent number: 4203988
    Abstract: Compounds of the formula ##STR1## have been found to inhibit gastric secretion in mammalian species.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: May 20, 1980
    Assignee: Merck & Co., Inc.
    Inventors: William A. Bolhofer, Edward J. Cragoe, Jr., Jacob M. Hoffman, Jr.
  • Patent number: 4193788
    Abstract: N-(2-Chloro-4-pyridyl)ureas represented by the formula (I): ##STR1## wherein R.sub.1 represents hydrogen or alkyl, R.sub.2 represents an aromatic group, especially phenyl, which may be substituted by alkyl, alkoxyl, hydroxyl or halogen, and X is oxygen or sulfur, and acid addition salts thereof, useful as plant growth regulators, are disclosed. Method of making and using same and agricultural compositions thereof are also disclosed.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: March 18, 1980
    Inventors: Koichi Shudo, Toshihiko Okamoto, Yo Isogai, Soshiro Takahashi
  • 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
  • Patent number: 4182888
    Abstract: A series of 2,6-diamino-4-tertiary-amino-pyridine 1-oxides is disclosed. Substituents in the 4-position include diethylamino, pyrrolidinyl, piperidino, morpholino, thiomorpholino, and N-methylpiperazino. Novel oxadiazolones such as 5-amino-7-(1-piperidinyl)-2H-[1,2,4]-oxadiazolo[2,3-a]pyridine-2-one which are useful in the preparation of the pyridine 1-oxides are also disclosed. The compounds of this invention lower blood pressure in normotensive and hypertensive mammals and are particularly useful in the treatment of hypertensive conditions in mammals. 2,6-Diamino-4-(1-piperidinyl)pyridine 1-oxides is a prepresentative embodiment of the invention.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: January 8, 1980
    Assignee: Mead Johnson & Company
    Inventors: John E. Lawson, Ronald D. Dennis
  • Patent number: 4154941
    Abstract: Certain compounds in which a carbon atom of a pyrrolidine or piperidine ring is bonded directly or through a methylene group to the nitrogen of a phenyl-substituted urea, and their pharmaceutically acceptable salts, are active anti-arrhythmic agents.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: May 15, 1979
    Assignee: Riker Laboratories, Inc.
    Inventor: Elden H. Banitt
  • Patent number: 4151162
    Abstract: Dyes for application to hair to impart rich color nuances thereto, include diazamerocyanines, the mesomeric forms thereof and the salts thereof, of the formulaA.dbd.N--N.dbd.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: April 24, 1979
    Assignee: L'Oreal
    Inventors: Gerard Lang, Andree Bugaut
  • Patent number: 4149872
    Abstract: Compounds of the formula ##STR1## wherein A is ##STR2## in which R.sup.1 is alkyl and n is 0-1, or ##STR3## in which R.sup.2 is hydrogen, alkyl or halogen; Y is halogen or alkyl; and X is halogen, --NR.sup.3 R.sup.4 in which R.sup.3 and R.sup.4 each independently is hydrogen or alkyl; OR.sup.5 ; SR.sup.5 ; S(O)R.sup.5 or S(O).sub.2 R.sup.5, in which R.sup.5 is alkyl, are useful as herbicides.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: April 17, 1979
    Assignee: Shell Oil Company
    Inventor: Kurt H. G. Pilgram
  • Patent number: 4146627
    Abstract: The circulation provides new aminoalkylidene-amino-1,4-dihydropyridines which influence the circulatory system and are useful, for instance, as antihypertensive agents. Also included in the invention are methods for the preparation of said dihydropyridines, compositions containing them and methods for their use.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: March 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Egbert Wehinger, Friedrich Bossert, Horst Meyer, Wulf Vater, Arend Heise, Stanislav Kaada, Kurt Stoepel
  • Patent number: 4139537
    Abstract: Cardiac arrhythmias can be treated by administering an effective amount of 3-aryloxy-1-(2-or 4-iminodihydro-1-pyridyl)-2-propanol or phamaceutically acceptable acid addition compound. Many new effective compounds of this type are disclosed.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: February 13, 1979
    Assignee: Cooper Laboratories, Inc.
    Inventors: Julius Diamond, Ronald A. Wohl
  • Patent number: 4139624
    Abstract: The compounds are C.sub.2 -C.sub.8 straight chain alkanes terminally substituted, symmetrically or unsymmetrically, by N-(N'-substituted guanidino), N-(N',N"-disubstituted guanidino), N-(N'-substituted thioureido), N-(nitromethylene amidino) or S-(N-substituted isothioureido)groups. Two compounds of the invention are 1,3-bis-[N'-(2-(3-methoxy-2-pyridylmethylthio)ethyl)guanidino]propane and 1-[N-(2-(3-methoxy-pyridylmethylthio)ethyl)guanidino]-3-(N'-2-(5-methyl-4- imidazolylmethylthio)ethyl)guanidino]propane. The compounds of this invention are inhibitors of H-2 histamine receptors.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: February 13, 1979
    Assignee: SmithKline & French Laboratories Limited
    Inventors: Graham J. Durant, Charon R. Ganellin, George S. Sach
  • Patent number: 4133956
    Abstract: Benzoylureas are prepared from a benzamide, an alkyllithium, a phenyl chloroformate, and an amine. Two reaction sequences are described. The benzoylureas obtained by the process are useful as insecticides.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: January 9, 1979
    Assignee: Eli Lilly and Company
    Inventors: Riaz F. Abdulla, Norman H. Terando
  • Patent number: 4127575
    Abstract: In the process for preparing 2,3,5-trichloropyridine, 2,3,4,5- or 2,3,5,6-tetrachloropyridine by the oxidation of the appropriate trichloro- or tetrachlorohydrazinopyridine, the improvement which comprises carrying out the oxidation with an alkaline hypochlorite in the presence of a reaction medium.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: November 28, 1978
    Assignee: The Dow Chemical Company
    Inventor: Stanley D. McGregor
  • Patent number: RE31244
    Abstract: The invention relates to a series of new compounds, to methods for preparing the compounds, to compositions containing said compounds which are useful in the human and veterinary medical practice, and to methods for treating patients suffering from certain illnesses with said compounds, the new compounds having the general formula I ##STR1## or the tautomeric forms thereof in which the R.sup.1 -substituted cyano-guanidyl radical is placed in the 2-, 3- or 4-position of the pyridine ring, and in which R.sup.1 stands for a straight or branched, saturated or unsaturated, aliphatic hydrocarbon radical having from 1 to 8 carbon atoms, a cycloalkyl or cycloalkenyl radical having from 3 to 7 carbon atoms, an aryl or an aralkyl radical, and R.sup.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: May 17, 1983
    Assignee: Leo Pharmaceutical Products Ltd. A/S (Lovens kemiske Fabrik Produktionsaktieselskab)
    Inventor: Hans J. Petersen