Patents Examined by R. J. Gallagher
  • Patent number: 3997557
    Abstract: Substituted N-aminoalkylpyrroles of the formula: ##STR1## IN WHICH X, Z, R.sub.1, -R.sub.5 and n are as defined below, and their physiologically tolerable acid addition salts are disclosed to have antiarrhythmic, central nervous system depressant, antiinflammatory and antihypertensive activity. A process for their preparation is also disclosed.
    Type: Grant
    Filed: April 23, 1974
    Date of Patent: December 14, 1976
    Assignee: American Hoechst Corporation
    Inventors: Grover C. Helsley, Richard C. Effland, Larry Davis
  • Patent number: 3997321
    Abstract: This invention discloses the compound 1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-acetyloxy-1,3-imidazolidin- 2-one and its utility as a herbicide.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: December 14, 1976
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • Patent number: 3996227
    Abstract: Compounds of the formula I: ##SPC1##whereinR.degree. is lower alkyl,n is 0, 1 or 2,R is lower alkyl,R' is a radical of the formula ##SPC2##In which Y and Y' are the same or different and represent hydrogen, lower alkyl, lower alkoxy, halo of atomic weight of 19 to 36 or one of Y and Y' is trifluoromethyl while the other is hydrogen, or a radical of the formula ##SPC3##In which Y" is hydrogen, fluorine, chlorine or alkyl of 1 to 3 carbon atoms,Are prepared by cyclizing a compound of formula II ##SPC4##in which R, R', R.degree. and n are as defined above, with phosgene, or,Where R is not a tertiary alkyl group in which the tertiary carbon atom is directly attached to the ring nitrogen atom, with a C.sub.1 -C.sub.2 alkyl chlorocarbonate or 1,1'carbonyldiimidazole. The compounds of formula I possess pharmaceutical activity in animals.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: December 7, 1976
    Assignee: Sandoz, Inc.
    Inventor: William G. Salmond
  • Patent number: 3994914
    Abstract: 4,4-Spiro-oxazolinium halides, named systematically as 1-oxo-3-azaspiro[4.4]nonane hydrohalides or 1-oxo-3-azaspiro[4.5]decane hydrohalides, and 4,4-dimethyl oxazolinium halides, useful as intermediates in the synthesis of hypotensive azetidinones.
    Type: Grant
    Filed: May 22, 1969
    Date of Patent: November 30, 1976
    Assignee: Eli Lilly and Company
    Inventors: Nelson R. Easton, William W. Hargrove
  • Patent number: 3993652
    Abstract: Catalysts having the following formula, prepared in the absence of water, are stable to heat and storage and show high activity in reactions involving organic isocyanates, such as in the production of polyurethane and polyisocyanurate resins: ##EQU1## wherein: A is a mono- or bicyclic tertiary amine having at least 4 carbon atoms in an azine ring,R.sup.1 is H or an alkyl group of 1 to 10 carbon atoms,R.sup.2 is H or an alkyl or aryl group of 1 to 10 carbon atoms, and.phi. is a phenyl group, which may be further substituted by one or more hydroxyl or alkyl groups.Typical compounds, for example, are those corresponding to the formula ##EQU2## wherein: R is H or methyl.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: November 23, 1976
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ibrahim S. Bechara, Felix P. Carroll, Rocco L. Mascioli, John R. Panchak
  • Patent number: 3992394
    Abstract: 6-AMINO AND 6-(N-protected amino)-2,2-dimethyl-3-cyanopenams, intermediates therefor, and a process for the conversion of the 3-cyano penams, by reaction with a source of azide ion in a reaction inert solvent, to 6-amino- and 6-(N-protected amino)-2,2-dimethyl-3(5-tetrazolyl)penams, intermediates for the preparation of antibacterial agents.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: November 16, 1976
    Assignee: Pfizer Inc.
    Inventor: Donald E. Kuhla
  • Patent number: 3992396
    Abstract: 2-amino-5-(substituted or unsubstituted phenylalkyl)-thiadiazoles, e.g., 2-amino-5-(4-[phenylbutyl])-thiadiazole, prepared, e.g., by ring closure, of corresponding 1-(substituted or unsubstituted phenylalkanoyl)-thiosemicarbazide in a strong acid medium. The compounds are useful as minor tranquilizers and sedative hypnotics.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: November 16, 1976
    Assignee: Sandoz, Inc.
    Inventors: Marcel K. Eberle, Robert E. Manning
  • Patent number: 3991064
    Abstract: This invention relates to novel substituted benzo[c][2,7]naphthyridines and their preparation. The compounds of this invention are active as bronchodilators.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: November 9, 1976
    Assignee: Warner-Lambert Company
    Inventors: Richard E. Brown, Chester Puchalski, John Shavel, Jr.
  • Patent number: 3984412
    Abstract: New derivatives of pyrido[2,3-b]pyrazine carboxylic acids and esters and their acid addition salts have the general formula ##SPC1##They are useful as anti-inflammatory agents and central nervous system depressants.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: October 5, 1976
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Theodor Denzel, Hans Hoehn
  • Patent number: 3984426
    Abstract: (1-ALKYL-5-NITRO-IMIDAZOLYL-2-ALKYL)-HETEROARYL COMPOUNDS AND A PROCESS FOR THEIR MANUFACTURE ARE DESCRIBED. The new compounds are well compatible and are effective against bacteria and protozoa as well as against fungi. They are especially active against trichomonads and amebae.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: October 5, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erhardt Winkelmann, Wolfgang Raether
  • Patent number: 3979404
    Abstract: Novel 2-substituted-1,2,4-thiadiazolo-[2,3-a]-imidazoles of the formula ##SPC1##And the pharmaceutically acceptable salts thereof; and process for their preparation. These 2-substituted-1,2,4-thiadiazolo-[2,3-a]-imidazoles are useful as fungistatic and fungicidal agents.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: September 7, 1976
    Assignee: Syntex (U.S.A.) Inc.
    Inventor: Colin C. Beard
  • Patent number: 3974170
    Abstract: A process is disclosed which comprises reacting hydrogen sulfide with azolesulfonates and sulfinates to give 2-mercaptoazoles. One embodiment of the invention describes removal of oxidized forms of 2-mercaptobenzothiazole including benzothiazole-2-sulfonates from effluent by treatment with hydrogen sulfide.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: August 10, 1976
    Assignee: Monsanto Company
    Inventors: Robert Henry Campbell, Alfred Bay Sullivan
  • Patent number: 3974174
    Abstract: 1-(1,2,4-TRIAZOLYL-1')-2-PHENOXY-4,4-DIMETHYL-PENTAN-3-ONES OF THE FORMULA ##SPC1##In whichn is an integer from 0 to 5,X is halogen, halogenoalkyl, alkyl, alkoxy, alkylthio, alkylsulfonyl, nitro, nitrile, carbalkoxy or phenyl, andY is a keto group or a functional derivative of a keto group,Or a salt thereof,Which possess fungicidal properties.
    Type: Grant
    Filed: June 27, 1974
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Heinz Buchel, Wolfgang Kramer, Paul-Ernst Frohberger
  • Patent number: 3966752
    Abstract: The D-form of an optically active protected penicillamine is prepared by treating a solution of D,L protected penicillamine of the formula: ##EQU1## wherein Ac is formyl, and R.sub.1 and R.sub.2 are both methyl or are joined together to form the pentamethylene group.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: June 29, 1976
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Friedrich Asinger, Heribert Offermanns, Karl-Heinz Gluzek, Walter VONBebenburg
  • Patent number: 3954761
    Abstract: Nitrogen-heterocyclic phosphonic acids and derivatives thereof characterized by aminomethyl (or substituted methyl) phosphonic acids or derivatives thereof bonded directly or indirectly, i.e., through a N-side chain to the nitrogen atom in the heterocyclic ring, for example those containing in the molecule at least one of the following units: ##EQU1## where N represents a heterocyclic ring having a nitrogen atom on the ring; --R'N-- represents an amino-terminated side chain attached directly to the ring nitrogen (which side chain may or may not be present); and ##EQU2## represents a methyl (or substituted methyl) phosphonic acid group where M is hydrogen, an alcohol or a salt moiety, and X and Y are hydrogen or a substituted group such as alkyl, aryl, etc., of which one or two units may be present depending on the available nitrogen bonded hydrogens, and to uses for these compounds, for example, as scale inhibitors, corrosion inhibitors, etc.
    Type: Grant
    Filed: August 26, 1971
    Date of Patent: May 4, 1976
    Assignee: Petrolite Corporation
    Inventor: Derek Redmore
  • Patent number: 3954763
    Abstract: In accordance with the present invention there are provided N-(m-trifluoromethylthio-phenyl)-piperazine and its salts. These compounds are intermediates for synthesis.
    Type: Grant
    Filed: October 2, 1973
    Date of Patent: May 4, 1976
    Assignee: Synthelabo
    Inventors: Don Pierre Rene Lucien Giudicelli, Henry Najer
  • Patent number: 3954783
    Abstract: D,L-penicillamine is converted to D-penicillamine with the aid of 1-pseudonorephedrine.
    Type: Grant
    Filed: January 25, 1974
    Date of Patent: May 4, 1976
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventor: Paul Scherberich
  • Patent number: 3954754
    Abstract: This invention provides aminopyridazine derivatives of formula I, ##SPC1##whereinR.sub.1 is amino, or an ##EQU1## group, wherein each of R.sub.3 and R.sub.4 is alkyl of 1 to 4 carbon atoms, orR.sub.3 and R.sub.4 together with the carbon atom to which they are bound, form a cycloalkylidene radical of 5 to 12 carbon atoms,R.sub.2 is hydrogen or methyl,A is a --(CH.sub.2).sub.n -- group,Whereinn is 0 or an integer from 1 to 7, or an >N--CO--R.sub.5 group,WhereinR.sub.5 is alkyl or alkenyl of 1 to 16 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, 1-adamantyl, or a --(CH.sub.2).sub.m --R.sub.6 group,Whereinm is 0 or an integer from 1 to 4, andR.sub.
    Type: Grant
    Filed: July 3, 1974
    Date of Patent: May 4, 1976
    Assignee: Sandoz Ltd.
    Inventor: Erhard Schenker
  • Patent number: 3953451
    Abstract: Naphthalimides of the formula ##SPC1##In which R is substituted alkyl or heteroaralkyl and R' is alkyl or alkyl bearing alkoxy or hydroxy as a substituent. The compounds are eminently suitable for the optical brightening of synthetic fibers, particularly acrylonitrile polymers, on which outstanding brightening effects are obtained.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: April 27, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Renate Elisabeth Hell, Horst Scheuermann
  • Patent number: 3953453
    Abstract: Trifluoromethyl substituted analogs of quinine and quinidine are prepared by reacting a 4-quinolyllithium compound with a 4,5-erythro-5-ethyl-(or vinyl)-quinuclidine-2 .xi.-carboxaldehyde or the corresponding quinuclidine-2 .xi.-carboxylic acid alkyl ester. The end products are useful as antimalarial agents.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: April 27, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Guenter Grethe, Milan Radoje Uskokovic