Patents Examined by Catherine S. Scalzo
  • Patent number: 5457112
    Abstract: 3-(6-Quinolylmethyl)-4H-imidazol-4-one derivatives corresponding to the formula (I): ##STR1## in which R.sub.1 represents an unbranched or branched (C.sub.2 -C.sub.5) alkyl group,R.sub.2 and R.sub.3 represent, each independently of one another, either a hydrogen atom, or an unbranched or branched (C.sub.1 -C.sub.5)alkyl group, or a (CH.sub.2).sub.n -aryl group where n=0 to 3, or R.sub.2 and R.sub.3 with the imidazole ring can form a spirocyclo(C.sub.3 -C.sub.8)alkyl group,as well as their addition salts with pharmaceutically acceptable acids and bases.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: October 10, 1995
    Assignee: Synthelabo
    Inventors: Gerard Cremer, Jean Claude Muller
  • Patent number: 5451586
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or (C.sub.1 -C.sub.6)alkyl; R.sup.2 is phenyl, pyridyl, thienyl or furyl, and R.sup.2 may optionally be substituted with from one to three substituents independently selected from (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, chloro, fluoro, bromo, iodo, and trifluoromethyl; R.sup.3 is phenyl, naphthyl, pyridyl, thienyl or furyl, and R.sup.3 may optionally be substituted with from one to three substituents independently selected from (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, chloro, fluoro, bromo, iodo and trifluoromethyl; and the pharmaceutically acceptable salts of such compounds.These compounds are substance P antagonists and useful in the treatment of gastrointestinal disorders, inflammatory disorders, central nervous system disorders and pain.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: September 19, 1995
    Assignee: Pfizer Inc.
    Inventor: John A. Lowe, III
  • Patent number: 5434161
    Abstract: The imidazopyridines compounds of the present invention are serotonergic 5-HT.sub.3 antagonists. As such they are useful for the treatment of humans and animals wherein antagonism of 5-HT.sub.3 receptors is beneficial. Therapy is indicated for, but not limited to, the treatment of anxiety, psychoses, depression (especially depression accompanied by anxiety), cognitive disorders, substance abuse dependence and withdrawal, gastrointestinal motility disturbancies (including esophageal reflux, dyspepsia, gastric stasis, irritable bowel syndrome), emesis caused by chemotherapeutic agents, and visceral pain. Additionally, the compounds of the present invention may find utility as enhancers of nasal absorption of bioactive compounds.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: July 18, 1995
    Assignee: G. D. Searle & Co.
    Inventors: Daniel P. Becker, Daniel L. Flynn, Alan E. Moormann, Roger Nosal, Clara I. Villamil
  • Patent number: 5356901
    Abstract: Benzofurancarboxamides having basic substituents, of the formula I ##STR1## in which R.sup.1 and X have the meanings stated in the description, a process for the preparation thereof, and therapeutic agents containing them.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: October 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Schlecker, Hans-Juergen Teschendorf, Liliane Unger
  • Patent number: 5300506
    Abstract: A series of novel indol-3-ylalkyl derivatives of alkoxypyrimidinylpiperazines are disclosed as Formula I. ##STR1## These compounds are intended to be useful agents for alleviation of vascular headache on the basis of their potent affinity and agonist activity at 5-HT1D binding sites.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: April 5, 1994
    Assignee: Bristol-Myers Squibb Company
    Inventors: David W. Smith, Frank D. Yocca, Joseph P. Yevich, Ronald J. Mattson, Andrew Williams, Edward H. Ruediger
  • Patent number: 5281608
    Abstract: There are disclosed compounds of the formula ##STR1## wherein R is hydrogen, lower alkyl or phenyl;R.sup.1 is hydrogen, lower alkyl, phenyl, halo, hydroxy, lower alkoxy or trifluoromethyl;R.sup.2 is phenyl, phenylloweralkyl, thienyl, furyl, pyrrolyl, pyridyl, benzothienyl, benzofuryl, indolyl, quinolinyl, or any of the foregoing substituted with halo, lower alkyl, lower alkylcarbonyl, benzoyl, carboxy, lower alkoxycarbonyl, OR.sup.3, N(R.sup.3).sub.2, CON(R.sup.3).sub.2, phenylsulfonyl, lower alkylsulfonyl, cyano, nitro or trifluoromethyl;R.sup.3 is hydrogen, lower alkyl or phenyl; ##STR2## R.sup.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: January 25, 1994
    Assignee: American Home Products Corporation
    Inventors: Jerauld S. Skotnicki, Robert M. Kearney
  • Patent number: 5231181
    Abstract: The invention provides a process for preparing single enantiomers of compounds represented by the formula: ##STR1## and chiral acid addition salts thereof; wherein: X and Y are independently hydrogen; lower alkyl; lower alkoxy; or halo; or X and Y taken together is methylenedioxy or ethylene-1,2-dioxy;which includes reduction of a compound represented by the formula: ##STR2## to give a mixture of stereoisomers represented by the formula: ##STR3## wherein each wavy line independently represents a bond in either the .alpha. or .beta. position;followed by dissolving the mixture of stereoisomers and a chiral resolving acid in a suitable solvent and allowing the solution to crystallize, giving a salt of the desired enantiomer.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: July 27, 1993
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Norman H. Dyson, John O. Gardner, John C. Rohloff
  • Patent number: 5015655
    Abstract: Compounds useful in the treatment of Alzheimers's disease, senile dementia or memory disorders of the aged of the formula ##STR1## in which n represents the number 1, 2 or 3,R.sub.1 and R.sub.2, identical or different, represent hydrogen, a linear, branched or cyclic alkyl, alkenyl, or alkynyl which contain up to 6 carbon atoms, R.sub.1 and R.sub.2 optionally substituted by hydroxy, alkoxy containing up to 6 carbon atoms, aralkyl containing up to 14 carbon atoms, a COOalk.sub.1 radical in which alk.sub.1 represents alkyl containing up to 6 carbon atoms, a --CON(alk.sub.2).sub.2 radical in which alk.sub.2 represents alkyl containing up to 6 carbon the radical --C(R.sub.1).dbd.NOR.sub.2 being in position 2, 3 or 4, in all their isomer forms and their mixture, as well as their addition salts with pharmaceutically acceptable organic or mineral acids. Also therapeutic compositions containing the compounds, method of treatment and method of preparation.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: May 14, 1991
    Assignee: Roussel UCLAF
    Inventors: Giulio Galliani, Fernando Barzaghi, Carla Bonetti, Emilio Toja
  • Patent number: 4939160
    Abstract: Hydropyridine derivatives of the formula ##STR1## in which R.sub.1 represents carboxy, lower alkoxycarbonyl, carbamoyl, N-lower alkylcarbamoyl or N,N-di-lower alkylcarbamoyl, R.sub.2 represents hydrogen, an optionally etherified or acylated hydroxy group or an optionally acylated amino group, and R.sub.3 represents a radical of the formula R- (Ia), R-alk.sub.1 - (Ib) or R'=alk.sub.2 - (Ic) in which R represents a benzocycloalkenyl radical having a total of from 8 to 12 ring carbon atoms which is bonded via a saturated carbon atom and which is unsubstituted or is mono- or poly-substituted in the benzo moiety by hydroxy, lower alkoxy, lower alkanoyloxy, halogen, lower alkyl and/or by trifluoromethyl, and/or substituted in the .alpha.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: July 3, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg von Sprecher, Wolfgang Frostl, Armin Zust
  • Patent number: 4929624
    Abstract: Novel 1-substituted 1H-imidazo-[4,5-c]quinolin-4-amines are disclosed. These compounds function as antiviral agents, and they are potential synthetic intermediates in the preparation of known antiviral agents and labeled known antiviral agents. This invention also provides intermediates for preparing such compounds, pharmaceutical compositions containing such compounds, and pharmacological methods of using such compounds.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: May 29, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John F. Gerster, Roy T. Knafla
  • Patent number: 4919843
    Abstract: The invention relates to antifoam compositions containing an essentially linear organopolysiloxane, a silicone resin containing essentially triorganosiloxy and SiO.sub.4/2 units, and a filler.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Wacker-Chemie GmbH
    Inventors: Ernst Innertsberger, Jakob Schmidlkofer, Peter Huber, Willibald Burger, Joachim Schulze
  • Patent number: 4913544
    Abstract: A plastic organic photochromic article, typically a lens such as an ophthalmic lens or a window such as a vehicle roof light, comprisig a plastics host material having a photochromic compound incorporated therein or applied thereto, the article exhibiting the following properties, measured at Air Mass 2 at 25.degree. C.:(a) an integrated visible transmission in the faded state (B.IVT) ranging from 90 to 25%,(b) an integrated visible transmission in the darkened state (D.IVT) ranging from 1 to 50%, preferably 4 to 30%,(c) the rate of darkening of the article when it is exposed to actinic radiation is such that 88% of the darkening range is achieved in 30 seconds or less, i.e. T.sub.88 .ltoreq.30 secs,(d) the rate of fading of the article from its fully darkened condition is such that more than 60% of the optical density range is recovered in 60 seconds, i.e. % ODG-1.gtoreq.60%, and(e) the induced optical density of the article, i.e.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: April 3, 1990
    Assignee: Pilkington plc
    Inventors: Martin Rickwood, John D. Hepworth