Patents by Inventor Ivo Jirkovsky

Ivo Jirkovsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080058543
    Abstract: A process for a stereoselective preparation of novel chiral nitrogen mustard derivatives useful in synthesizing optically active 1,4-disubstituted piperazines of formula: wherein R, Ar, and Q are defined as set forth herein, and intermediate compounds therefor. The 1,4-disubstituted piperazines act as 5HT1A receptor binding agents useful in the treatment of Central Nervous System (CNS) disorders.
    Type: Application
    Filed: August 8, 2007
    Publication date: March 6, 2008
    Inventors: Joseph Zeldis, Gregg Feigelson, Ivo Jirkovsky
  • Publication number: 20080009634
    Abstract: There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification The bicyclic heteroaryl carboxaldehydes are useful as intermediates in the preparation of ?-lactamase inhibitors.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 10, 2008
    Applicant: Wyeth Holdings Corporation
    Inventors: Michael Winkley, Anita Chan, Ivo Jirkovsky, Kenneth Kremer, Joseph Zeldis, Antonia Nikitenko, Henry Strong, Tarek Mansour, Gulnaz Khafizova, Aranapakam Venkatesan
  • Patent number: 7019137
    Abstract: A process for a stereoselective preparation of novel chiral nitrogen mustard derivatives useful in synthesizing optically active 1,4-disubstituted piperazines of formula: wherein R, Ar, and Q are defined as set forth herein, and intermediate compounds therefor. The 1,4-disubstituted piperazines act as 5HT1A receptor binding agents useful in the treatment of Central Nervous System (CNS) disorders.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 28, 2006
    Assignee: Wyeth
    Inventors: Ivo Jirkovsky, Joseph Zeldis, Gregg Brian Feigelson
  • Publication number: 20050228181
    Abstract: A process for a stereoselective preparation of novel chiral nitrogen mustard derivatives useful in synthesizing optically active 1,4-disubstituted piperazines of formula: wherein R, Ar, and Q are defined as set forth herein, and intermediate compounds therefor. The 1,4-disubstituted piperazines act as 5HT1A receptor binding agents useful in the treatment of Central Nervous System (CNS) disorders.
    Type: Application
    Filed: June 7, 2005
    Publication date: October 13, 2005
    Applicant: Wyeth
    Inventors: Joseph Zeldis, Gregg Feigelson, Ivo Jirkovsky
  • Publication number: 20050070709
    Abstract: A process for making an N1-(2?-pyridyl)-1,2-alkanediamine sulfamic acid of formula II by reacting a compound of formula I with NH2R? wherein R and R? are as defined in the specification. The invention also includes the compound of formula II, and optical isomers thereof. The compound of formula II is an intermediate useful for making chiral piperazine derivatives which are active at the 5-HT1A receptor.
    Type: Application
    Filed: August 16, 2004
    Publication date: March 31, 2005
    Applicant: Wyeth
    Inventors: Anita Chan, Gregg Feigelson, Joseph Zeldis, Ivo Jirkovsky
  • Patent number: 6784294
    Abstract: A process for making an N1-(2′-pyridyl)-1,2-alkanediamine sulfamic acid of formula II by reacting a compound of formula I with NH2R′ wherein R and R′ are as defined in the specification. The invention also includes the compound of formula II, and optical isomers thereof. The compound of formula II is an intermediate useful for making chiral piperazine derivatives which are active at the 5-HT1A receptor.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: August 31, 2004
    Assignee: Wyeth
    Inventors: Anita Wai-Yin Chan, Gregg Brian Feigelson, Joseph Zeldis, Ivo Jirkovsky
  • Patent number: 6743796
    Abstract: This invention provides compounds of formula VI wherein Y is hydrogen, methyl, methoxy, methylthio or trifluoromethyl; R is hydrogen, C1-3alkyl or (CH2)nAr; n is 0, 1 or 2; and Ar is phenyl or methoxyphenyl, or a pharmaceutically acceptable salt thereof. These compounds are selective dopamine autoreceptor agonists useful in treating disease states involving hyperactivity of dopamine systems. The invention also comprises intermediate compounds, compositions and methods related to the compounds of formula VI.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: June 1, 2004
    Assignee: Wyeth
    Inventors: Lynne P. Greenblatt, Ivo Jirkovsky, Richard E. Mewshaw
  • Patent number: 6713626
    Abstract: A process for formation of N-aryl piperazines with chiral N′-1-[benzoyl(2-pyridyl)amino]-2-propane side-chains having the structure shown in formula below, and for making intermediate compounds therefor. In this process, chirality is introduced at the piperazine ring formation step and 2-aminopyridyl substitution is incorporated via displacement. The resulting N,N′ disubstituted piperazines act on the central nervous system at 5HT receptors.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 30, 2004
    Assignee: Wyeth
    Inventors: Gregg Brian Feigelson, Joseph Zeldis, Ivo Jirkovsky
  • Publication number: 20030208075
    Abstract: A process for a stereoselective preparation of novel chiral nitrogen mustard derivatives useful in synthesizing optically active 1,4-disubstituted piperazines of formula: 1
    Type: Application
    Filed: March 10, 2003
    Publication date: November 6, 2003
    Applicant: Wyeth
    Inventors: Ivo Jirkovsky, Joseph Zeldis, Gregg Brian Feigelson
  • Publication number: 20030204087
    Abstract: A process for making an N1-(2′-pyridyl)-1,2-alkanediamine sulfamic acid of formula II by reacting a compound of formula I with NH2R′ 1
    Type: Application
    Filed: March 10, 2003
    Publication date: October 30, 2003
    Applicant: Wyeth
    Inventors: Anita Wai-Yin Chan, Gregg Brian Feigelson, Joseph Zeldis, Ivo Jirkovsky
  • Publication number: 20030187265
    Abstract: A process for formation of N-aryl piperazines with chiral N′-1-[benzoyl(2-pyridyl)amino]-2-propane side-chains having the structure shown in formula below, and for making intermediate compounds therefor.
    Type: Application
    Filed: March 10, 2003
    Publication date: October 2, 2003
    Applicant: Wyeth
    Inventors: Gregg Brian Feigelson, Joseph Zeldis, Ivo Jirkovsky
  • Publication number: 20030013722
    Abstract: This invention provides compounds of formula VI 1
    Type: Application
    Filed: May 3, 2002
    Publication date: January 16, 2003
    Applicant: Wyeth
    Inventors: Lynne P. Greenblatt, Ivo Jirkovsky, Richard E. Mewshaw
  • Patent number: 6355630
    Abstract: This invention provides estrogens and antiestrogens of formula I having the structure wherein X, Y, Z, and R are as defined hereinbefore in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: March 12, 2002
    Assignee: American Home Products Corporation
    Inventors: Chris P. Miller, Ivo Jirkovsky, Bach Dinh Tran
  • Patent number: 5952506
    Abstract: This invention is concerned with a new and improved process for the large scale production of 4-?6-(hexylcarbamoyloxy)hexylcarbainoyloxy!-piperidine-1-carboxylic acid 4-phenoxyphenyl ester, disclosed in European Patent Application 0 635 501 A1, published Jan. 25, 1995, a compound that inhibits cholesterol ester hydrolase (CEH) and acylcoenzyme A cholesterol acyltransferase (ACAT). In the invention process, 1-benzyl-4-hydroxypiperidine or 1-methyl-4-hydroxypiperidine is reacted with a carbonylating reagent such as carbonyldiimidazole (CDI) and 6-aminohexanol forming the intermediate 1-benzyl (or methyl)-4-(6-hydroxyhexylcarbamoyloxy)piperidine. Reaction of this intermediate with CDI and hexylamine gives the corresponding 1-benzyl (or methyl)-4-?6-(hexylcarbamoyloxy)-hexylcarbamoyloxy!piperidine. The N-benzyl or methyl group is concomitantly removed and replaced with the 4-phenoxyphenyloxycarbonyl group using 4-phenoxyphenyl chloroformate.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: September 14, 1999
    Assignee: American Home Products Corporation
    Inventor: Ivo Jirkovsky
  • Patent number: 5438056
    Abstract: The compounds of the present invention have the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently phenyl, pyridyl, thienyl, naphthyl, substituted phenyl wherein the substituent is selected from the group consisting of halogen, methoxy, and dialkylamino wherein alkyl contains 1 to 3 carbon atoms; or R.sup.1 and R.sup.2 are independently substituted furanone of the structure ##STR2## wherein R.sup.5 and R.sup.6 are independently alkyl containing 1 to 3 carbon atoms, cycloalkyl containing 5 to 7 carbon atoms, phenyl or substituted phenyl wherein the substituent is alkyl containing 1 to 5 carbon atoms or halogen; R.sup.7 is hydrogen or halogen; or R.sup.1 and R.sup.2 are joined to form ##STR3## R.sup.3 and R.sup.4 are independently hydrogen, alkyl containing 4 to 20 branched, straight chain, cyclic, saturated or unsaturated carbon atoms; or R.sup.3 and R.sup.4 are joined to form ##STR4## wherein R.sup.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: August 1, 1995
    Assignee: American Home Products Corporation
    Inventors: Steven W. Felman, Kevin A. Memoli, Ivo Jirkovsky
  • Patent number: 5068342
    Abstract: Disclosed herein are 1- or 2-thio, thiomethylene, and sulfonylnaphthalene derivatives of formulas I and II ##STR1## or a pharmaceutically acceptable cationic salt thereof, wherein n is 0 or 1R.sub.5 is hydrogen, bromo, chloro, trifluoromethyl or difluoroethyl;R.sub.6 is hydrogen, hydroxy, methoxy or ethoxy; andR.sub.7 is hydrogen or R.sub.7 and R.sub.6 are both methyl or ethyl carbonate,provided that, when S(O).sub.2 is in the 2 position of the naphthalene ring, R.sub.5, R.sub.6 and R.sub.7 are each hydrogen. The disclosed compounds possess blood-glucose lowering actions and are useful in the treatment of diabetes mellitus.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: November 26, 1991
    Assignee: American Home Products Corporation
    Inventors: Arie Zask, Ivo Jirkovsky
  • Patent number: 4997948
    Abstract: Disclosed herein are 1- or 2-thio, thiomethylene, and sulfonylnaphthalene derivatives of formulas I and II ##STR1## or a pharmaceutically acceptable catonic salt thereof, wherein n is 0 or 1R.sub.5 is hydrogen, bromo, chloro, trifluoromethyl or difluoroethyl;R.sub.6 is hydrogen, hydroxy, methoxy or ethoxy; andR.sub.7 is hydrogen or R.sub.7 and R.sub.6 are both methyl or ethyl carbonate,provided that, when S(O).sub.2 is in the 2 position of the naphthalene ring, R.sub.5, R.sub.6 and R.sub.7 are each hydrogen. The disclosed compounds possess blood-glucose lowering actions and are useful in the treatment of diabetes mellitus.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: March 5, 1991
    Assignee: American Home Products
    Inventors: Arie Zask, Ivo Jirkovsky
  • Patent number: 4665183
    Abstract: Herein is disclosed 6,7,8,9-tetrahydro-10-methylpyrido[1,2-a]indol-9-amines and derivatives, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions. The derivatives are chemically novel agents with cerebroactive and cognition activating properties.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: May 12, 1987
    Assignee: American Home Products Corp.
    Inventors: Ivo Jirkovsky, Gary King, Reinhardt Baudy, Victor DeNoble
  • Patent number: 4624954
    Abstract: Herein is disclosed 6,7,8,9-tetrahydro-10-methylpyrido[1,2-a]indol-9-amines and derivatives, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions. The derivatives are chemically novel agents with cerebroactive and cognition activating properties.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: November 25, 1986
    Assignee: American Home Products Corporation
    Inventors: Ivo Jirkovsky, Gary King, Reinhardt Baudy, Victor DeNoble
  • Patent number: 4515949
    Abstract: A compound of the formula ##STR1## in which R.sup.1 is hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl;R.sup.2 is hydrogen or lower alkyl having one to three carbon atoms; andR.sup.5 is benzyl or lower alkyl;and a compound of the formula ##STR2## in which R.sup.1 is hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl;R.sup.2 is hydrogen or lower alkyl having one to three carbon atoms; andX is bromo or chloro, or hydrogen;as intermediates for pyrazino(2,3-3,4) pyrido (1,2-a) indoles which are useful for treating hypertension in mammals.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: May 7, 1985
    Assignee: American Home Products Corporation
    Inventors: George Santroch, Ivo Jirkovsky