Patents Represented by Attorney Thomas S. Szatkowski
  • Patent number: 5162328
    Abstract: N-[3-[2-(1H-Imidazol-1-yl)ethoxy]phenyl]-4-(2-thienyl)-2-pyrimidinamine and pharmacologicaly acceptable salts, useful as antiasthma agents and treatment of allergic diseases and exhibiting improved bioavailability properties.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: November 10, 1992
    Assignee: American Cyanamid Company
    Inventors: Rolf Paul, Robert G. Kelly, Lawrence W. Torley
  • Patent number: 5144045
    Abstract: Phospocholine derivatives having the formula: ##STR1## in which W, Z, Q and R are described in the specification are disclosed as useful for inhibiting the enzyme phospholipase A.sub.2. Methods of making and using the compounds are also disclosed.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 1, 1992
    Assignee: American Cyanamid Company
    Inventors: Allan Wissner, Robert E. Schaub, Kenneth E. Green, Philip R. Hamann
  • Patent number: 5116827
    Abstract: The N-phosphorylation of basic nitrogenous drug compounds to produce pro-drugs with enhanced water solubility or lipid solubility, or reduced toxicity, is disclosed. Drugs containing amine, amidine, guanidine, isourea, isothiourea and biguanide functions may be converted to such pro-drugs. The pro-drugs are hydrolyzed in the body, regenerating the original drugs with the release of a salt of phosphoric acid.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: May 26, 1992
    Assignee: American Cyanamid Company
    Inventors: Keith C. Murdock, Ving J. Lee
  • Patent number: 5114946
    Abstract: Compositions and methods for the transdermal delivery of pharmacologically active chiral compounds are described which are based on the use of enantiomers or mixtures that contain a disproportionate amount of the enantiomers.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: May 19, 1992
    Assignee: American Cyanamid Company
    Inventors: James R. Lawter, John M. Pawelchak
  • Patent number: 5114720
    Abstract: Pharmaceutical tablets having increased slipperiness and swallowability are provided. The enhanced swallowability is imparted by an overcoat of a low bloom gelatin, which overcoat has a lower coefficient of friction than other known coatings.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: May 19, 1992
    Assignee: American Cyanamid Company
    Inventor: Douglas C. Becker
  • Patent number: 5103015
    Abstract: A novel process for producing .alpha.-[(dialkylamino)substituted-methylene].beta.-oxo-(substituted) propanenitriles of the formula: ##STR1## where R, R.sub.1 and R.sub.2 are defined in the specification by reacting a substituted isoxazole with a diaklyamide dimethylacetal is provided.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: April 7, 1992
    Assignee: American Cyanamid Company
    Inventors: John P. Dusza, Robert F. Church
  • Patent number: 5079247
    Abstract: N.sup.1 substituted benz [cd] indol -2(1H)-imines useful as inhibitors of Thromboxane synthetase enzyme, hypertension and arrhythmia are described.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: January 7, 1992
    Assignee: American Cyanamid Company
    Inventors: Andrew S. Tomcufcik, Walter E. Meyer, Nancy H. Eudy
  • Patent number: 5077283
    Abstract: The N-phosphorylation of basic nitrogenous drug compounds to produce pro-drugs with enhanced water solubility or lipid solubility, or reduced toxicity, is disclosed. Drugs containing amine, amidine, quanidine, isourea, isothiourea and biguanide functions may be converted to such pro-drugs. The pro-drugs are hydrolyzed in the body, regenerating the original drugs with the release of a salt of phosphoric acid.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: December 31, 1991
    Assignee: American Cyanamid Company
    Inventors: Keith C. Murdock, Ving J. Lee
  • Patent number: 5077282
    Abstract: The N-phosphorylation of basic nitrogenous drug compounds to produce pro-drugs with enhanced water solubility or lipid solubility, or reduced toxicity, is disclosed. Drugs containing amine, amidine, guanidine, isourea, isothiourea and biguanide functions may be converted to such pro-drugs. The pro-drugs are hydrolyzed in the body, regenerating the original drugs with the release of a salt of phosphoric acid.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: December 31, 1991
    Assignee: American Cyanamid Company
    Inventors: Keith C. Murdock, Ving J. Lee
  • Patent number: 5068232
    Abstract: The invention relates to new 2-substituted alkyl-3-carboxy carbapenems having the formula: ##STR1## with R.sup.1, R.sup.2, R.sup.3, X and Y defined hereafter as antibiotics and beta lactamase inhibitors produced by a novel Michael addition-elimination reaction of a substituted allyl azetidinone in the reaction shown: ##STR2## with R.sup.1, R.sup.2, Q, X and Y defined hereafter.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: November 26, 1991
    Assignee: American Cyanamid Company
    Inventors: Carl B. Ziegler, Jr., William V. Curran, Gregg Feigelson
  • Patent number: 5066799
    Abstract: Intermediates useful in synthesis of aminothiazoloximino cephalosporins are disclosed, which intermediates can be radio-labelled for pharmacological evaluation.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: November 19, 1991
    Assignee: American Cyanamid Company
    Inventor: William V. Curran
  • Patent number: 5064963
    Abstract: The invention provides a novel process for producing N-[3-(1H-imidazol-1-yl)phenyl]-4-(substituted)-2 pyrimidinamine compounds in which the substituent is a 2-pyridinyl, 3-pyrindinyl, 4-pyridinyl, 2-furanyl or 2-thienyl group. The process includes the steps of (1) reacting a 3-(1H-imidazol-1-yl)benzamine with cyanamide and a halogen acid while controlling the pH of the reaction between pH about 2 to abourt 3.5 and recovering a [3-(1H-imidazol-1-yl)phenyl] guanidine dihydrohalide and (2) reacting the [3-(1H-imidazol-1-yl)phenyl] guanidine dihydrohalide so recovered with an appropriately substituted 3-dimethylamino-1-(substituted)-2-propen-1-one and a base at a pH of from about 10.5 to about 11.5 and recovering the N-[3-(1H-imidazol-1-yl)phenyl-4-(substituted)-2-pyrimidamine compound so produced. The novel process provides improved yield and purity by adhering to the stated crucial pH ranges.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: November 12, 1991
    Assignee: American Cyanamid Company
    Inventor: William D. Dean
  • Patent number: 5059709
    Abstract: A novel process for producing .alpha.-[(dialkylamino) substituted-methylene].beta.-oxo-(substituted) propanenitriles of the formula: ##STR1## where R, R.sub.1 and R .sub.2 are defined in the specification by reacting a substituted isoxazole with a diaklylamide dimethylacetal is provided.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 22, 1991
    Assignee: American Cyanamid Company
    Inventors: John P. Dusza, Robert F. Church
  • Patent number: 5053426
    Abstract: New thioester and ester, amide and ketone isostere analogs of oleoyl coenzyme A, useful as antiatherosclerotic agents, are provided. The compounds have the formula: ##STR1## wherein A is selected from the group consisting of ##STR2## Y is selected from the group consisting of --S--, --O--, --NH-- and (--CH.sub.2 --).sub.n wherein n=1 to 4; and Z is selected from the group consisting of alkyl (C.sub.1 -C.sub.6), ##STR3## wherein R=Hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: October 1, 1991
    Assignee: American Cyanamid Company
    Inventors: Jonathan D. Bloom, Minu D. Dutia
  • Patent number: 5050752
    Abstract: A container for pills and medicines which is child resistant but is also readily accessible to the elderly or infirm is provided. The container features two or more easy to manipulate two position switches having sufficient width or spacing to accommodate swollen fingers.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: September 24, 1991
    Assignee: American Cyanamid Company
    Inventors: Bart J. Zoltan, Roseamrie T. Specian, Linda A. Walker
  • Patent number: 5001139
    Abstract: The transdermal flux rates of 1,4-dihydropyridine derivatives, such as nilvapidine and its enantiomers may be increased by the use of a solvent vehicle which comprises dioctyl adipate, isopropyl myristate, benzyl alcohol, diisopropyl adipate, a mixture of 5 to 50% ethyl alcohol and 95-50% of diisopropyl adipate, or a mixture of any of the foregoing.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: March 19, 1991
    Assignee: American Cyanamid Company
    Inventors: James R. Lawter, John M. Pawelchak
  • Patent number: 4996305
    Abstract: Processes for producing antibacterial and antitumor agents designated LL-E33288.epsilon.I and LL-E33288.epsilon.-Br using triphenylphosphine or a sulfhydryl-containing reagent are disclosed. Processes for producing reductively aromatized derivatives of other antibiotics are also disclosed.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 26, 1991
    Assignee: American Cyanamid Company
    Inventors: William J. McGahren, George A. Ellestad
  • Patent number: 4992449
    Abstract: Novel antibacterial compounds of the formula: ##STR1## in which R.sub.1 is alkyl (C.sub.1 -C.sub.4), cycloalkyl (C.sub.3 -C.sub.6), alkoxy (C.sub.1 -C.sub.4), alkylamino (C.sub.1 -C.sub.3), vinyl, phenyl, benzyl, --CH.sub.2 CH.sub.2 F or mono or polysubstituted phenyl (wherein the substituent is halogen, CF.sub.3 or OCH.sub.2 F); n is an integer of from 1 to 4; and R.sub.2 is cis or trans hydroxy, amino, mono or disubstituted alkyl (C.sub.1 -C.sub.3) amino and the pharmacologically accepted salts thereof are described.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: February 12, 1991
    Assignee: American Cyanamid Company
    Inventors: Panayota Bitha, Yang-I Lin
  • Patent number: 4978748
    Abstract: Processes for producing antibacterial and antitumor agents designated LL-E33288.epsilon.-I and LL-E33288.epsilon.-Br using triphenylphosphine at ice bath temperature are disclosed. Novel intermediates prepared in the processes are also disclosed.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 18, 1990
    Assignee: American Cyanamid Company
    Inventors: George A. Ellestad, William J. McGahren
  • Patent number: 4977143
    Abstract: Antibacterial and antitumor agents designated LL-E333288.epsilon.-I and LL-E33288.epsilon.-Br and their production by strains of Micromonospora echinospora ssp. calichensis designated NRRL-15839, NRRL-15975 and NRRL-18149, are disclosed.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 11, 1990
    Assignee: American Cyanamid Company
    Inventors: William J. McGahren, George A. Ellestad