Patents by Inventor Paul Naab

Paul Naab 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: 20030236276
    Abstract: The present invention relates to pyrrolo[2.1-a]isoquinolines which are inhibitors of phosphodiesterase 10a, a process for preparing these compounds and a method of treating cancer in humans and animals by administering these compounds.
    Type: Application
    Filed: August 5, 2002
    Publication date: December 25, 2003
    Inventors: Ulrich Niewohner, Maria Niewohner, Marcus Bauser, Jens-Kerim Erguden, Dietmar Flubacher, Paul Naab, Thorsten-Oliver Repp, Jurgen Stoltefuss, Nils Burkhardt, Andrea Sewing, Michael Schauer, Karl-Heinz Schlemmer, Olaf Weber, Stephen J. Boyer, Mark Miglarese, Jianmei Fan, Barton Phillips, Brian C. Raudenbush, Yamin Wang
  • Publication number: 20030232802
    Abstract: The invention relates to novel aryl and heteroaryl sulfonates of formula (Ia) and to methods for producing them and to novel aryl and heteroaryl sulfonates of formula (I) for treating and/or preventing diseases, especially for treating pain and neurodegenerative diseases, A representing (C6-C10)-aryl or 5-10-membered heteroaryl, D representing (C6-C10)-arylene or 5-10-membered heteroarylene, R1 representing (C4-C8)-alkyl, (C2-C8)-alkyl, the carbon chain being interrupted by one or two heteroatoms or groups chosen from the following group: —O—, —S—, —SO—and —SO2—, (C2-C8)-alkenyl or (C2-C8)-alkinyl, in formula (Ia); and R1 representing (C3-C8)-alkyl, (C2-C8)-alkyl, the carbon chain being interrupted by one or two heteroatoms or groups chosen from the following group: —O—, —S—,—SO—and —SO2—, (C2-C8)-alkenyl or (C2-C8)-alkinyl.
    Type: Application
    Filed: May 12, 2003
    Publication date: December 18, 2003
    Inventors: Markus Heil, Heinrich Meier, Paul Naab, Arnd Voerste, Jean-Marie-Viktor de Vry, Dirk Denzer, Frank Mauler, Klemens Lustig, Volker Hinz, Swen Allerheiligen
  • Patent number: 6586613
    Abstract: Substituted tetrahydro-naphthalenes and analogous compounds are prepared by reducing or condensing appropriate functional substituents in substituted tetrahydro-naphthalenes and analogous compounds by customary methods and converting functional groups in this manner into the desired groups. The compounds according to the invention are suitable for use as active compounds in pharmaceuticals, in particular in pharmaceuticals for treating arteriosclerosis and also dyslipidaemias.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: July 1, 2003
    Assignee: Bayer Aktiengellschaft
    Inventors: Arndt Brandes, Michael Lögers, Jürgen Stoltefuss, Gunter Schmidt, Klaus-Dieter Bremm, Hilmar Bischoff, Delf Schmidt, Stefan Antons, Holger Paulsen, Stephan Nicholas Müller, Paul Naab, Carsten Schmeck
  • Publication number: 20030022934
    Abstract: The invention relates to novel phenoxyphenyl alkanesulphonates, processes for their preparation, their use for producing medicaments for the treatment and/or prophylaxis of diseases, in particular for the treatment of states of pain and neurodegenerative disorders
    Type: Application
    Filed: September 26, 2001
    Publication date: January 30, 2003
    Inventors: Markus Heil, Heinrich Meier, Paul Naab, Arnd Voerste, Jean-Marie-Viktor De Vry, Dirk Denzer, Frank Mauler, Klemens Lustig, Jan-Bernd Lenfers
  • Patent number: 6207671
    Abstract: The cycloalkano-pyridines are prepared by reacting corresponding cycloalkano-pyridine-aldehydes with suitable organometallic compounds or Wittig or Grignard reagents or reacting compounds of the cycloalkano-pyridine alcohols type with suitable bromine compounds, and optionally varying the functional groups accordingly. The cycloalkanopyridines are suitable as active compounds in medicaments, in particular in medicaments for the treatment of hypertipoproteinaemia and arteriosclerosis.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: March 27, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Schmidt, Arndt Brandes, Rolf Angerbauer, Michael Lögers, Matthias Müller-Gliemann, Carsten Schmeck, Klaus-Dieter Bremm, Hilmar Bischoff, Delf Schmidt, Joachim Schuhmacher, Henry Giera, Holger Paulsen, Paul Naab, Michael Conrad, Jürgen Stoltefuss
  • Patent number: 6069148
    Abstract: The cycloalkano-pyridines are prepared by reacting corresponding cycloalkano-pyridine-aldehydes with suitable organometallic compounds or Wittig or Grignard reagents or reacting compounds of the cycloalkano-pyridine alcohols type with suitable bromine compounds, and optionally varying the functional groups accordingly. The, cycloalkanopyridines are suitable as active compounds in medicaments, in particular in medicaments for the treatment of hyperlipoproteinaemia and arteriosclerosis.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: May 30, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Schmidt, Arndt Brandes, Rolf Angerbauer, Michael Logers, Matthias Muller-Gliemann, Carsten Schmeck, Klaus-Dieter Bremm, Hilmar Bischoff, Delf Schmidt, Joachim Schuhmacher, Henry Giera, Holger Paulsen, Paul Naab, Michael Conrad, Jurgen Stoltefuss
  • Patent number: 5952498
    Abstract: The invention relates to a process and intermediates for the preparation of enantiomerically pure cycloalkanoindolecarboxylic acids and azaindolecarboxylic acids and pyrimido?1,2a!indolecarboxylic acids and their activated derivatives, characterized in that the tolyl acetic acid is first esterified with a chiral alcohol, then diastereoselective substitution at .alpha.-carbon atoms is carried out and this product is halogenated in the tolyl group and then reacted with appropriate cycloalkanoindoles, cycloalkanoazaindoles or pyrimido?1,2a!indoles. It is possible by this method to prepare specifically, in high purity, the enantiomerically pure carboxylic acids which are intermediates for valuable medicaments.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: September 14, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jan-Bernd Lenfers, Peter Fey, Paul Naab, Kai Van Laak
  • Patent number: 5684158
    Abstract: The invention relates to new ?3-amino!-tetrahydrocarbazole-propanoic acid esters which can be used as intermediates for the preparation of known thromboxane-antagonistic active compounds, and to a method for the purification of these active compounds.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: November 4, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Samir Samaan, Joachim Lanz, Paul Naab, Ulrich Rosentreter
  • Patent number: 5639886
    Abstract: The present invention relates to a one-pot process for the preparation of 7-heterocyclyl-substituted 3-quinolonecarboxylic acid derivatives. They possess a strong anti-microbial effect. They include active compounds such as, for example, ofloxacin, ciprofloxacin or enrofloxacin.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: June 17, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Zerbes, Paul Naab, Gerhard Franckowiak, Herbert Diehl
  • Patent number: 5132419
    Abstract: (7-APCA) having the formula (I) ##STR1## which is an important synthesis intermediate in the preparation of cephalosporin-like antibiotics, is prepared by treating a compound of the formula (II) ##STR2## in which R.sub.1 and R.sub.2 represent alkyl, aryl and aralkyl radicals, with a strong protonic acid or with a Lewis acid. Compound (II) is prepared by adding triphenylphosphine and alkali metal iodide to a compound of the formula (VI) ##STR3## then reacting with acetaldehyde in base. Compound (VI) is prepared by treating a compound of the formula (VII) ##STR4## with a base in a polar solvent at -70.degree. C. to 0.degree. C. Compound (VII) is prepared by treating a compound of the formula (VIII) ##STR5## with a chlorinating agent in an organic solvent.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: July 21, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Lanz, Paul Naab, Ulrich Rosentreter
  • Patent number: 4973590
    Abstract: Known quinolone carboxylic acid derivatives of the formula ##STR1## are treated so as to become readily administrable parenterally, the treatment comprising dissolving the active compound using an acid, allowing the solution to stand for about 0.15 to 150 hours at a temperature from room temperature to the boiling point of the solution, filtering the solution, precipitating the active compound from the solution using a basic reagent, and converting the precipitated active compound into a form which can be administered parenterally.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: November 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Preiss, Ulrich Schorsch, Arthur Haaf, Paul Naab, Rudolf Zerbes
  • Patent number: 4904789
    Abstract: In the preparation of nitrenedipine by reaction of an ylidene compound of the formula ##STR1## with an enamine compound of the formula ##STR2## the improvement which comprises effecting the reaction in the presence of a catalytic amount of diisopropylamine acetate or dimethylbenzylamine acetate. The product is produced in high yield with reduced amounts of symmetrical by-products.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: February 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Naab, Willi Lange, Werner Teller
  • Patent number: 4782162
    Abstract: The new compounds of the formula ##STR1## in which Acyl is alkylcarbonyl optionally substituted by halogen or aryl, or arylcarbonyl, which is substituted by lower alkoxy, halogen or nitro,R.sup.1 is an alkyl or alkenyl radical, andR.sup.4 is an optionally substituted branched or straight-chain C.sub.1 -C.sub.6 -alkyl radical or a cycloalkyl radical,are produced by reacting a 2-halogenoacetylacrylic acid ester of the formula ##STR2## with an acylthiourea of the formula ##STR3## The reaction can be conducted in aqueous DMF, substantially pure Z-isomer selectively crystallizing out.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: November 1, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Boberg, Paul Naab, Samir Samaan
  • Patent number: 4600778
    Abstract: In the preparation of a 1,4-dihydropyridine of the formula ##STR1## in which R is a phenyl radical which is optionally substituted once or twice by nitro and/or chlorine,R.sub.1 is a C.sub.1 -C.sub.4 -alkyl radical which is optionally substituted by a C.sub.1 -C.sub.4 -alkoxy group, andR.sub.2 is a C.sub.1 -C.sub.12 -alkyl radical which is optionally substituted by a C.sub.1 -C.sub.4 -alkoxy group, a trifluoromethyl group or the radical (C.sub.6 H.sub.5 CH.sub.2) (CH.sub.3)N,by preparing an ylidene compound of the formula ##STR2## and reacting such ylidene compound with an enamine compound of the formula ##STR3## the improvement which comprises preparing the ylidene compound by reaction of a ketocarboxylic ester of the formula ##STR4## with an aldehyde of the formula RCHO, in a solvent in the presence of a catalytic amount of any acetate salt of an amine, at a temperature from about -10.degree. C. up to 100.degree. C. The products symmetrical or unsymmetrical, are produced in high yield and purity.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: July 15, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Teller, Wolfgang Koebernick, Arthur Haaf, Paul Naab, Michael Preiss
  • Patent number: 4515789
    Abstract: A 3-.beta.-(vic-dihydroxyphenylmethyleneamino-2-oxo-imidazolidine)- or 3-.beta.-(vic-dihydroxyphenyl-methyleneamino-2,3-dioxo-piperazine)-1-carbo nylamino-acetamidoazetidin-2-one having an acidic grouping on .sub.1 N, e.g. of the formula ##STR1## The compounds are antibiotically active, especially against Pseudomonas bacteria and can be used in combating bacterial infection, as a preservative and as a growth promoting agent in animal feeds.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: May 7, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl G. Metzger, Wilfried Schrock, Dieter Habich, Paul Naab, Hans-Joachim Zeiler
  • Patent number: 4438114
    Abstract: A .beta.-lactam of the formula ##STR1## or a hydrate thereof, in whichR represents a hydrogen atom or a methoxy group,n is 1 or 2,Z represents a group of the formula ##STR2## wherein R.sup.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: March 20, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Boberg, Dieter Habich, Karl G. Metzger, Paul Naab