Patents Represented by Attorney Arthur G. Seifert
  • Patent number: 6417261
    Abstract: Adhesive sticks are obtained using water-based preparations of synthetic polymers of adhesive character and soaps which act as shaping gel-forming components. Mixtures of polyurethanes and polyvinyl pyrrolidone are used as the synthetic polymers. The polyurethane may be in the form of a dispersion and produced by reacting at least one polyol, at least one polyfunctional isocyanate and a component capable of salt formation in alkaline aqueous solution and/or a nonionic hydrophilic modifying agent.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: July 9, 2002
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Maier, Wolfgang Klauck
  • Patent number: 5990307
    Abstract: This invention relates to a process for the preparation of the formula I compound [2-((8,9)-dioxo-2,6-diazabicyclo[5.2.0]-non-1(7)-en-2-yl)ethyl]phosphonic acid, a NMDA antagonist useful as an anticonvulsant and neuroprotectant in situations involving excess release of excitatory amino acids. ##STR1## In the process of the present invention, 3-aminopropyl carbamic acid 1,1-dimethylethyl ester is reacted with a dialkyl vinylphosphonate to obtain N-[3-(t-butyloxycarbonyl-amino)propyl]-2-aminoethylphosphonic acid dialkyl ester (d) in 80% yield. Reaction of (d) with a 3,4-dialkoxycyclobut-3-en-1,2-dione gives [3-[[2-(dialkoxyphosphoryl)ethyl]-(2-alkoxy-3,4-dioxo-1,2-cyclobuten-1-yl) amino]propyl] carbamic acid 1,1-dimethylethyl ester (e) in 96% yield. Deprotection and cyclization of (e) in trifluoroacetic acid gives [2-((8,9)-dioxo-2,6-diazabicyclo[5.2.0]-non-1(7)-en-2-yl)ethyl]phosphonic acid dialkyl ester (c) in 58% yield.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: November 23, 1999
    Assignee: American Home Products Corporation
    Inventors: Andre A. Asselin, William A. Kinney, Jean Schmid
  • Patent number: 5965696
    Abstract: This invention concerns peptides (I) having intracellular potassium channel modulating activity comprising the amino acid sequence shown in SEQ ID No: 2:(N terminal function) (I) Met Ile Ser Ser Val Cys Val Ser Ser 1 5} Tyr Arg Gly Arg Lys Ser Gly Asn Lys 10 15 Pro Pro Ser Lys Thr Cys Leu Lys Glu Glu 20 25 (C terminal function)in which the cysteines are optionally linked via a disulphide bridge and wherein ______________________________________ Met represents L-methionine Ile represents L-isoleucine Ser represents L-serine Val represents L-valine Cys represents L-cysteine Tyr represents L-tyrosine Arg represents L-arginine Gly represents glycine Lys represents L-lysine Asn represents L-asparagine Pro represents L-proline Thr represents L-threonine Leu represents L-leucine Glu represents L-glutamic acid ______________________________________or a variant thereof,with the proviso that excluded is the 13-Lys variant (where 13-Arg is replaced by 13-Lys) in which the cysteines are not linked via a disulphide bridge
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: October 12, 1999
    Assignee: John Wyeth & Brother, Ltd.
    Inventors: Roger Crossley, Albert Opalko, David Geraint Owen, Brian Robertson
  • Patent number: 5922715
    Abstract: This invention relates to compounds of Formula I ##STR1## wherein: R.sup.1 and R.sup.2 are independently selected from hydrogen, straight-chain and branched alkyl group having up to 10 carbon atoms or --(CH.sub.2).sub.m Ar where Ar is phenyl, naphthyl or thienyl, each optionally substituted by one or two substituents selected independently from C.sub.1 -C.sub.6 alkyl, halogen, C.sub.1 -C.sub.6 alkoxide and trifluoromethyl;or NR.sup.1 R.sup.2 is 1, 2, 3, 4-tetrahydroquinolin-1-yl or 1, 2, 3, 4-tetrahydroisoquinoline-2-yl;m is 1-5;n is 1 or 2;Y is hydrogen, C.sub.1 -C.sub.6 alkyl, and C.sub.1 -C.sub.6 alkoxy;or the pharmaceutically acceptable salts thereof, which are dopamine D.sub.2 agonists and therefore useful in the treatment of psychoses and Parkinson's disease.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 13, 1999
    Assignee: American Home Products Corporation
    Inventors: James Albert Nelson, Uresh Shantilal Shah, Richard Eric Mewshaw
  • Patent number: 5830909
    Abstract: The invention is a method of using Angiotensin (AII) Antagonists as inhibitors of the growth of adipose tissue, reducing adipocyte growth and body weight gain.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: November 3, 1998
    Assignee: American Cyanamid Company
    Inventor: David LeRoy Crandall
  • Patent number: 5827847
    Abstract: Piperazine derivatives of formula (I) are useful in the treatment of cognitive disorders. In formula (I), X is a group of (IIa): --(CH.sub.2).sub.n CR.sup.2 R.sup.3 CONR.sup.4 R.sup.5 or (IIIb): --A--NR.sup.6 COR.sup.7 where n, A, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have specified meanings.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: October 27, 1998
    Assignee: John Wyeth & Brother, Ltd.
    Inventors: Ian Anthony Cliffe, Allan Fletcher, Alan Chapman White
  • Patent number: 5763460
    Abstract: Compounds of formula (I) and the pharmaceutically acceptable acid addition salts thereof are 5-HT.sub.1A binding agents and may be used, for example, as anxiolytics. In the formula a and b each represents 0, 1, 2 or 3 such that the sum of a+b is 0, 1, 2 or 3, the dotted line represents an optional double bond which may be present in the ring, provided that a is at least 1, A is an alkylene chain of 1 or 2 carbon atoms optionally substituted by one or more lower alkyl groups, R is a mono or bicyclic aryl or heteroaryl radical with the proviso that R is not an unsubstituted phenyl group, R.sup.1 is a mono or bicyclic heteroaryl radical, and R.sup.2 is cycloalkyl or cycloalkenyl.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 9, 1998
    Assignees: John Wyeth & Brother Limited, American Home Products Corporation
    Inventors: Ian Anthony Cliffe, Terence James Ward, Chapman White Alan, Antony Ashwell Mark, Bernhard Baudy Reinhardt
  • Patent number: 5760220
    Abstract: A process is described for preparing a compound of the formula I: ##STR1## or a salt thereof; wherein X is a protecting group and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently hydrogen, C.sub.1-6 alkyl or C.sub.1-6 perfluoroalkyl, R.sub.5 is hydrogen or when n is 1 R.sub.5 taken together with R.sub.3 comprises a double bond; m is 1, 2 or 3; n is 0 or 1, and p is 0, 1 or 2.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: June 2, 1998
    Assignee: American Home Products Corporation
    Inventors: Pierre Giguere, Silvio Iera, Michel Bernatchez, Giuseppe Barreca, Graziano Castaldi, Vincenzo Cannata
  • Patent number: 5714607
    Abstract: The invention is a process improvement for producing N-?3-(3-cyano-pyrazolo?1,5-a!pyrimidin-7-yl)phenyl!-N-ethyl-acetamide which is useful as an anxiolytic, antiepileptic, sedative-hypnotic agent and skeletal muscle relaxant. The disclosed invention comprises reacting 3-dimethylamino-1-(3-N-ethyl-N-acetyl-aminophenyl)-2-propen-1-one or a suitable salt thereof with 3-aminopyrazole-4-carbonitrile or a suitable salt thereof in a mixture comprising water and acetic acid or a suitable salt thereof, rather than in acetic acid alone.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 3, 1998
    Assignee: American Cyanamid Company
    Inventor: Thurairajah Padmanathan
  • Patent number: 5710149
    Abstract: This invention concerns compounds of formula (I) ##STR1## where A is a C.sub.1 or C.sub.2 alkylene chain optionally substituted by lower alkyl; Z is a bicyclic oxygen-containing aryl radical (e.g. 2,3-dihydro-1,4-benzodioxin-5-yl); R is hydrogen or lower alkyl; R.sup.1 is aryl or aryl(lower)alkyl; R.sup.2 is hydrogen or lower alkyl; and R.sup.3 is hydrogen, an alkyl group of 1 to 10 carbon atoms, cycloalkyl of 3 to 12 carbon atoms; cycloalkyl(lower)alkyl, aryl or aryl(lower)alkyl or R.sup.2 and R.sup.3 together with the nitrogen atom to which they are both attached represent a saturated heterocyclic ring which may contain a further hetero atom, and the pharmaceutically acceptable acid addition salts thereof. The compounds are 5-HT.sub.1A -antagonists which may be used, for example, in treating anxiety.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: January 20, 1998
    Assignee: John Wyeth & Brother, Ltd.
    Inventor: Ian Anthony Cliffe
  • Patent number: 5637701
    Abstract: A novel asymmetric synthesis is provided for preparing optically active amides of formula (A) and their salts. ##STR1## In the formula, X represent --N-- or --CH--, R represents a mono or bicyclic aryl or heteroaryl group, R.sup.1 is an aryl or heteroaryl radical, and R.sup.2 and R.sup.3 have specified meanings. The products are useful as 5-HT.sub.1A antagonists.Novel diesters of formula D useful as intermediates in the process are also disclosed.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: June 10, 1997
    Assignee: John Wyeth & Brother, Limited
    Inventor: Mark A. Ashwell
  • Patent number: 5629432
    Abstract: This appliciation discloses a process for preparing a lactone of general formula (I), where R is an optionally substituted phenyl group or an optionally substituted mono- or bicyclic heteroaryl radical which process comprises reacting an anion of a malonate of formula (II) with an ethylene compound of formula (III) Y--CH.sub.2 --CH.sub.2 OZ, to give a compound of formula (IV) and hydrolysing the compound of formula (IV) to give a lactone of formula (I). The lactones are of use as intermediates for preparing 5-HT.sub.1A binding agents.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: May 13, 1997
    Assignee: John Wyeth & Brother, Ltd.
    Inventor: Robin G. Shepherd
  • Patent number: 5616588
    Abstract: Disclosed herein is an aqueous, injectable rapamycin solution comprising 40 to 75 volume percent of a concentrate solution of rapamycin in propylene glycol, at concentrations of rapamycin ranging from 0.25 mg/ml to 8 mg/ml, in combination with a diluent solution comprising water, wherein the diluent comprises 60 to 25 volume percent of the combined solution and the concentration of rapamycin in the combined solution ranges from 0.1 mg/ml to 4 mg/ml.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: April 1, 1997
    Assignee: American Home Products Corporation
    Inventors: Robert P. Waranis, Thomas W. Leonard
  • Patent number: 5610154
    Abstract: Bicyclic carboxamides of formula I ##STR1## and the pharmaceutically acceptable acid addition salts are 5-HT.sub.1A binding agents, particularly 5-HT.sub.1A antagonists and may be used, for example, as anxiolytics. In the formulaX represents --CR.sup.2 .dbd.CR.sup.2 -- or --(CR.sup.2)q--;m represents 0,1 or 2; n represents 0,1 or 2; p represents 0,1,2 or 3 and q represents 0,1,2 or 3;A is an alkylene chain of 1 or 2 carbon atoms optionally substituted by one or more lower alkyl groups,R is a mono or bicyclic aryl or heteroaryl radical,R.sup.1 is an aryl or aryl(lower)alkyl radicaland each R.sup.2 is independently hydrogen or lower alkyl.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: March 11, 1997
    Assignees: John Wyeth & Brother, Ltd., American Home Products Corp.
    Inventors: Ian A. Cliffe, Howard L. Mansell, Terence J. Ward, James A. Nelson, Uresh S. Shah, Mira A. Kanzelberger
  • Patent number: 5601860
    Abstract: The invention disclosed herein comprises fat compositions primarily for use in nutritionally complete infant formulas in which the constituent palmitic acid oils and lauric acid oils are corandomized. The invention additionally includes such corandomized fat compositions with medium-chain triglycerides added, particularly for use in nutritional products for preterm or low birthweight infants. The invention further includes such fat compositions in which the constituent palmitic acid oils and oleic acid oils are corandomized. Such corandomization of two or more oils yields a mixture of triglycerides having a substantially different chemical makeup than that of the native oils themselves or than the native oils when randomized individually. Corandomization of the palmitic acid oils and the lauric acid oils or of the palmitic acid oils and the oleic acid oils affords an economical means of providing a very highly absorbed fat composition.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: February 11, 1997
    Assignee: American Home Products Corporation
    Inventors: Eric L. Lien, Rudolph M. Tomarelli
  • Patent number: 5585374
    Abstract: Amide derivatives of formula (I) and their pharmaceutically acceptable salts (where a and b each represent 0, 1, 2 or 3 such that a+b=0, 1, 2 or 3, the dotted line represents an optional double bond, A is an optionally substituted C.sub.1-2 -alkylene chain, R is mono or bicyclic aryl or heteroaryl radical, R.sup.1 is hydrogen or lower alkyl, R.sup.2 is an aryl, aralkyl, heteroaryl or heteroarylalkyl and --CONR.sup.3 R.sup.4 represents a specified amide group) are 5-HT.sub.1A binding agents and may be used, for example, as anxiolytics.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: December 17, 1996
    Assignee: John Wyeth Brother, Limited
    Inventors: Ian A. Cliffe, Alan C. White
  • Patent number: 5541326
    Abstract: Piperazine derivatives of formula: ##STR1## and their pharmaceutically acceptable acid addition salts are disclosed. In the formula, n is 1 or 2; R and R.sup.5 are hydrogen or lower alkyl, R.sup.1 is substituted or unsubstituted aryl or a heteroaromatic radical; R.sup.3 is substituted or unsubstituted aryl or substituted or unsubstituted arylalkyl; R.sup.9 is hydrogen, alkyl, cycloalkyl, cycloalkylalkyl or substituted or unsubstituted arylalkyl with the proviso that when R.sup.9 is hydrogen, alkyl, or arylalkyl, R.sup.5 is other than a tertiary alkyl group. The compounds of this invention are useful 5-HT.sub.1A antagonists for the treatment of CNS disorders such as anxiety.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: July 30, 1996
    Assignee: John Wyeth & Brother, Limited
    Inventor: Ian A. Cliffe
  • Patent number: 5538956
    Abstract: This invention concerns compounds of formula (I) wherein E represents hydrogen, C.sub.1 -C.sub.6 alkyl or a group Ar.sup.1 -A.sup.1 ; Ar and Ar.sup.1 when present each represent an aryl group of 6 to 10 carbon atoms or a heteroaryl group of 5 to 10 ring atoms wherein the heteroatoms are selected from oxygen, nitrogen and sulphur, which may be optionally substituted by one or more substituents selected from alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, halogen, haloalkyl of 1 to 6 carbon atoms, haloalkoxy of 1 to 6 carbon atoms, cyano, amino, mono- or di-(C.sub.1 -C.sub.6) alkylamino, hydroxy and nitro; A and A.sup.1 when present are the same or different alkylene groups having one or two carbons linking Ar or Ar.sup.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: July 23, 1996
    Assignee: John Wyeth & Brother, Limited
    Inventors: Michael C. Minchin, John F. White
  • Patent number: D420904
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: February 22, 2000
    Assignee: American Home Products Corporation
    Inventors: Paul R. Finkelston, Marty L. Shampoe
  • Patent number: D423925
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: May 2, 2000
    Assignee: American Home Products Corporation
    Inventors: Paul R. Finkelston, Marty L. Shampoe