Patents Examined by G. Thomas Todd
  • Patent number: 4001426
    Abstract: The compounds are benzoyl benzofurans and benzothiophenes having pharmacological activity, in particular, coronary vasodilator activity useful for the treatment of angina pectoris and intermediates for the preparation thereof.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: January 4, 1977
    Assignee: SmithKline Corporation
    Inventors: L. Martin Brenner, Charles K. Brush
  • Patent number: 4001250
    Abstract: 4-AMINO-2,2,6,6-TETRAMETHYL PIPERIDINE IS PREPARED BY REACTING PHORONE WITH AMMONIA AND HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST. The reaction is generally carried out at a temperature in the range of from 80.degree. to 200.degree. C and under a pressure of from 80 to 250 atmospheres.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: January 4, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Lantzsch, Dieter Arlt
  • Patent number: 4000287
    Abstract: 1-(3-Aryloxy-2-hydroxypropyl)-3- or 4-(1-oxoisoindolino)-piperidines, e.g. those of the formula ##STR1## 2-ALKANOIC ACID ESTERS AND ACID ADDITION SALTS THEREOF ARE ANTIHYPERTENSIVE AND ANTIARRHYTHMIC AGENTS.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: December 28, 1976
    Assignee: Ciba-Geigy Corporation
    Inventor: Lincoln Harvey Werner
  • Patent number: 3996232
    Abstract: Novel 1-aryl and aralkyl 5-substituted biguanide compounds have been prepared. The compounds of this invention possess useful antiulcerogenic properties.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: December 7, 1976
    Assignee: William H. Rorer, Inc.
    Inventors: Julius Diamond, Bernard J. Burns
  • Patent number: 3993671
    Abstract: A continuous process for the preparation of maleic anhydride from an aqueous solution of maleic acid formed in the production of maleic anhydride by the catalytic oxidation of aliphatic or aromatic hydrocarbons, with the continuous elimination of the impurities which accompany this maleic acid solution or which are subsequently formed in the course of the conversion of maleic acid into maleic anhydride.
    Type: Grant
    Filed: August 27, 1974
    Date of Patent: November 23, 1976
    Assignee: U C B, Societe Anonyme
    Inventor: Jean Ramioulle
  • Patent number: 3993654
    Abstract: Tetrachloropyridine is prepared by heating pentachloropyridine in an aqueous medium under pressure, with agitation, in the presence of a particulate oxidizable metal, e.g., zinc and a hydrogen-producing acid, e.g., hydrogen chloride. The tetrachloropyridine is then conveniently extracted with an inert, water-immiscible solvent, e.g., a halogenated hydrocarbon.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: November 23, 1976
    Assignee: The Dow Chemical Company
    Inventors: Norman LeRoy Dean, Wallace Eldon Embrey, John Thomas Marshall
  • Patent number: 3991082
    Abstract: Compounds of the formula: ##SPC1##Are disclosed. In this structural formula X is ##SPC2##And Y is hydrogen, lower alkyl, hydroxy, lower alkoxy, chloro, bromo or aryl. Included within the scope of this invention are tautomers of the above compound. These compounds and their tautomers are indicated in the management of allergic manifestations such as bronchial asthma.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: November 9, 1976
    Assignee: Warner-Lambert Company
    Inventors: Sylvester Klutchko, Max Von Strandtmann
  • Patent number: 3991194
    Abstract: Novel heterocyclic esters of benzopyranopyridines represented by the formula ##SPC1##Wherein R.sub.1 is hydrogen, lower alkyl, lower alkanoyl, cycloalkyl-lower alkyl, cycloalkyl-lower alkanoyl, lower alkenyl, lower alkynyl, halo-loweralkenyl, phenyl-lower alkyl, phenyl-lower alkenyl or phenyl-lower alkynyl; R.sub.2 is lower alkyl; R.sub.3 is an alkyl having one to twenty carbon atoms or a cycloalkyl-lower alkyl, Y is a straight or branched chain alkylene having one to eight carbon atoms, and R.sub.4 is a group of the formula ##EQU1## a is an integer from 1 to 4, b is an integer from 1 to 4 and X is CH.sub.2, O, S or N--R.sub.5 with R.sub.5 being hydrogen or lower alkyl, with the limitation that when X is O, S or N--R.sub.5, a and b each must be 2 and R.sub.6 is hydrogen or a lower alkyl group bonded to a carbon in the ring; and the acid addition salts thereof.
    Type: Grant
    Filed: December 4, 1972
    Date of Patent: November 9, 1976
    Assignee: Sharps Associates
    Inventors: Louis Selig Harris, Harry George Pars, John Clark Sheehan, Raj Kumar Razdan
  • Patent number: 3991066
    Abstract: The invention concerns novel indenopyridine derivatives of the formula: ##SPC1##Wherein m is 1, 2, 3 or 4, andR.sub.3 is an --O--R.sub.4 group,Wherein R.sub.4 is alkyl of 1 to 5 carbon atoms, phenyl or phenylalkyl, wherein the alkyl radical is of 1 to 4 carbon atoms, or an ##EQU1## group, WHEREIN EACH OFR.sub.5 and R.sub.6 is, independently, hydrogen, alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl or phenyl-alkyl, wherein the alkyl radical is of 1 to 4 carbon atoms, orR.sub.5 and R.sub.6 together with the nitrogen atom form a saturated 5- or 6-membered heterocyclic ring, the heterocycle being selected from heterocycles containing 1 nitrogen atom, 1 nitrogen atom and 1 oxygen atom, and 1 nitrogen atom and a further nitrogen atom substituted by an alkyl radical of 1 to 4 carbon atoms,Useful as anti-aggressives and in the treatment of excitation conditions.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: November 9, 1976
    Assignee: Sandoz Ltd.
    Inventors: Jean-Michel Bastian, Anton Ebnother, Erwin Rissi
  • Patent number: 3989593
    Abstract: Vindoline and vinblastine demethylated by submerged culture fermentation with S. albogriseolus.
    Type: Grant
    Filed: September 19, 1973
    Date of Patent: November 2, 1976
    Assignee: Eli Lilly and Company
    Inventors: Donald R. Brannon, Norbert Neuss
  • Patent number: 3989707
    Abstract: Novel benzimidazolinone derivatives and therapeutically acceptable acid addition salts thereof, said compounds being useful as long acting neuroleptic agents.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: November 2, 1976
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Paul Adriaan Jan Janssen, Albert H. M. Th. Van Heertum, Jan Vandenberk, Marcel J. M. C. Van der Aa
  • Patent number: 3988342
    Abstract: Disclosed are 1-, 2-, or 3-cyano-N-alkyl-5H-dibenzo[a,d]-cyclohepten-5-ylidene piperidine compounds having pharmaceutical utility as tranquilizers; also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when a tranquilizing effect is indicated.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: October 26, 1976
    Assignee: Merck & Co., Inc.
    Inventor: John D. Prugh
  • Patent number: 3987177
    Abstract: The invention provides vincaminic acid esters of formula ##SPC1##Wherein R.sub.1 is hydrogen or hydroxy, R.sub.2 is hydrogen or R.sub.1 and R.sub.2 form an additional bond between the two carbon atoms to which they are attached, and R.sub.3, R.sub.4 and R.sub.5 are hydrogen or methyl, and their salts. The esters are useful in treatment of cardiac-circulatory, cerebal-vascular or respiratory insufficiency.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: October 19, 1976
    Assignee: Synthelabo
    Inventors: Don Pierre Rene Lucien Giudicelli, Henry Najer, Yves Robert Alain Pascal, Patrick Andre Louis Lardenois
  • Patent number: 3984420
    Abstract: Prostaglandin F.sub.1.sub..alpha., prostaglandin F.sub.1.sub..beta., and analogs of those are produced from bicyclo[3.1.0]hexane intermediates.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: October 5, 1976
    Assignee: George E. Just
    Inventors: George E. Just, Chaim Simonovitch
  • Patent number: 3984562
    Abstract: Aminoacyl derivatives of 2,3,5,10,11,11a-hexahydro-1H-pyrrolo[2,1-c] [1,4]benzodiazepines in the form of their racemic mixtures, optical isomers and salts, their method of preparation and method of use are described. The compounds are useful in treating anxiety in warm-blooded animals.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: October 5, 1976
    Assignee: American Cyanamid Company
    Inventor: William Blythe Wright, Jr.
  • Patent number: 3984419
    Abstract: Compounds are provided having the structure ##SPC1##Wherein n is 1 or 2, n.sup.1 is 0, 1 or 2 and n.sup.2 is 0, 1, 2 or 3, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and can be hydrogen, lower alkyl, halolower alkyl, acyl, lower alkoxy-carbonyl ##EQU1## amido ##EQU2## or lower alkoxyalkylene, R can be lower alkoxy, lower alkyl or cycloalkyl, R.sub.8 can be hydrogen, lower alkyl, cycloalkyl, hydroxy, dialkylaminoalkyl or R.sub.9 O(CH.sub.2)q--. X is a single bond or a straight or branched bivalent aliphatic radical and Y is ##EQU3## These compounds are useful in the treatment of hypertension.
    Type: Grant
    Filed: February 28, 1974
    Date of Patent: October 5, 1976
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Frederic Peter Hauck, Christopher Michael Cimarusti
  • Patent number: 3984407
    Abstract: Compounds are provided having the structure ##SPC1##Wherein n is 1, 2 or 3, m and m' are 0, 1 or 2, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and can be hydrogen, lower alkyl, halolower alkyl, acyl, lower alkoxy-carbonyl ##EQU1## amido ##EQU2## or lower alkoxyalkylene, X is a straight or branched bivalent aliphatic radical and Y is ##EQU3## These compounds are useful in the treatment of hypertension.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: October 5, 1976
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Frederic Peter Hauck, Joyce Reid, Venkatachala L. Narayanan, Christopher M. Cimarusti, Rudiger D. Haugwitz, Joseph E. Sundeen
  • Patent number: 3983123
    Abstract: Certain 3-substituted octahydropyridoindolobenzazepines and their addition salts with pharmaceutically acceptable acids produce a marked central nervous system depressant activity in warm-blooded animals. These compounds are stereoisomers of prior art 3-substituted octahydropyridoindolobenzazepines which have a central nervous system antidepressant activity.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: September 28, 1976
    Assignee: Endo Laboratories, Inc.
    Inventor: Charles De Witt Adams
  • Patent number: 3983124
    Abstract: Novel 2,7-bis-basic derivatives of fluorene, 9-fluorenol and 9-fluorenone, their preparation and use for the prevention and inhibition of virus infections are disclosed.
    Type: Grant
    Filed: December 21, 1972
    Date of Patent: September 28, 1976
    Assignee: Richardson-Merrell Inc.
    Inventors: William L. Albrecht, Stephen W. Horgan, Arthur D. Sill, Robert W. Fleming
  • Patent number: 3983239
    Abstract: Hexahydro-.gamma.-carboline derivatives of the formula: ##SPC1##Wherein R.sub.1 is methyl or ethyl, and R.sub.2 is hydrogen, methyl or ethyl, with proviso that when R.sub.1 is ethyl, R.sub.2 is hydrogen, and their pharmaceutically acceptable acid addition salts, which exhibit excellent psychotropic effect, and a process for the preparation thereof.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: September 28, 1976
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Yasutaka Nagai, Hitoshi Uno, Masanao Shimizu, Tadahiko Karasawa