Patents by Inventor Ernst-Otto Renth

Ernst-Otto Renth 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: 20030130232
    Abstract: Compounds of the formula 1
    Type: Application
    Filed: September 23, 2002
    Publication date: July 10, 2003
    Applicant: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Frank Himmelsbach, Franz Birke, Armin Fugner
  • Patent number: 6489365
    Abstract: Compounds of the formula which is explained more fully in the specification, may be prepared by conventional methods and used therapeutically in conventional galenic preparations.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: December 3, 2002
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Frank Himmelsbach, Franz Birke, Armin Fugner
  • Patent number: 6288277
    Abstract: The present invention relates to new phenylamine derivatives, processes for preparing them and their use as pharmaceutical compositions.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: September 11, 2001
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Franz Birke, Hans Michael Jennewein, Christopher John Montague Meade
  • Patent number: 6265612
    Abstract: The present invention relates to new benzamidine derivatives, processes for preparing them and their use in pharmaceutical compositions.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: July 24, 2001
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Kurt Schromm, Ralf Anderskewitz, Ernst-Otto Renth, Franz Birke, Hans Michael Jennewein, Christopher John Montague Meade
  • Patent number: 6197753
    Abstract: Pyranoside derivatives of the formula I wherein 1, m and n independently of one another denote an integer chosen from 0, 1, 2, 3 and 4 and 1+m+n≦4. These are are LTB4-antagonists. Also disclosed are processes for making these compounds.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: March 6, 2001
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Franz Birke, Hans M. Jennewein, Christopher J. M. Meade, Andreas Ding
  • Patent number: 6197824
    Abstract: Novel benzamidines, having LTB4-antagonistic activity, of the formula methods for their preparation, their and their use as medicaments.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: March 6, 2001
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Kurt Schromm, Ralf Anderskewitz, Ernst-Otto Renth, Franz Birke, Hans Michael Jennewein, Christopher John Montague Meade
  • Patent number: 6127423
    Abstract: The invention relates to new phenylamidine derivatives, processes for preparing them and their use as pharmaceutical compositions.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 3, 2000
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Franz Birke, Hans Michael Jennewein, Christopher John Montague Meade, Andreas Ding
  • Patent number: 6037377
    Abstract: Compounds of the formula ##STR1## which is explained more fully in the specification, may be prepared by conventional methods and used therapeutically in conventional galenic preparations.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 14, 2000
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Frank Himmelsbach, Franz Birke, Armin Fugner
  • Patent number: 5731332
    Abstract: Compounds of formula ##STR1## and their therapeutic use, inter alia, as LTB.sub.4 -antagonists. Exemplary compounds are:(Methoxycarbonyl-imino-{4'-?2-(2-propylphenoxy)-ethoxy!-biphenyl-4-yl}-meth yl)-amine;(Benzyloxycarbonyl-imino-{4'-?2-(2-propylphenoxy)-ethoxy!-biphenyl-4-yl}-me thyl-amine;?Hydroxy-imino-(4-{3-?4-(1-methyl-1-phenylethyl)-phenoxymethyl!-benzoyloxy} phenyl)-methyl!-amine;?Ethoxycarbonyl-imino-(4-{3-?4-(1-methyl-1-phenylethyl)-phenoxymethyl!-benz oyloxy}phenyl)-methyl!-amine; and,?3'-Pyridylcarbonyl-imino-(4-{3-?4-(1-methyl-1-phenylethyl)-phenoxymethyl!- benzyloxy}phenyl)-methyl!-amine.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: March 24, 1998
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Franz Birke, Armin Fugner, Hubert Heuer, Christopher Meade
  • Patent number: 5686496
    Abstract: The new compound of formula ##STR1## may be prepared by conventional methods and used therapeutically as an LTB.sub.4 -receptor antagonist.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: November 11, 1997
    Assignee: Boehringer Ingelheim KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Ernst-Otto Renth, Franz Birke, Armin Fugner, Hubert Heuer, Christopher Meade
  • Patent number: 5223614
    Abstract: Compounds of formula ##STR1## wherein the substituents are defined hereinbelow, useful in the treatment of bronchospasm are described.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: June 29, 1993
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Kurt Schromm, Anton Mentrup, Ernst-Otto Renth, Gojko Mualcevic, Werner Traunecker
  • Patent number: 4720496
    Abstract: Compounds of the formula ##STR1## wherein (a)R.sub.1 is hydrogen, lower alkyl, lower alkoxy or 8-halo;R.sub.2 is hydrogen, lower alkyl, lower alkoxy or a fused benzene ring; andR.sub.3 and R.sub.4, together with each other, are --N.dbd.N--NH--; or(b)R.sub.1 and R.sub.2, together with each other, are --N.dbd.N--NH--;R.sub.3 is hydrogen, lower alkyl, lower alkoxy, 2-halo, 3-halo or 4-halo; andR.sub.4 is hydrogen, lower alkyl, lower alkoxy or a fused benzene ring;and non-toxic, pharmacologically acceptable salts thereof formed with an inorganic or organic base. The compounds as well as their salts are useful as antiallergics.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: January 19, 1988
    Assignee: Boehringer Ingelheim KG
    Inventors: Kurt Schromm, Anton Mentrup, Ernst-Otto Renth, Armin Fugner
  • Patent number: 4647563
    Abstract: Compounds of the formula ##STR1## wherein Het is ##STR2## n is an integer from 1 to 4, inclusive, preferably 2 or 3, R.sub.1 is H or acyl,R.sub.2 is H, R.sub.1 O, --NHSO.sub.2 R.sub.7, --NHCOR.sub.8, --NHCONHR.sub.8, --NH--CH.sub.2 --C.sub.6 H.sub.4 --R.sub.9, --CH.sub.2 OH, --CH.sub.2 SO.sub.2 R.sub.7, --CONHR.sub.8, halogen or --CN,R.sub.3 is H, halogen, R.sub.7 or --OR.sub.7,R.sub.2 and R.sub.3 together with each other are ##STR3## R.sub.4 is H, --CH.sub.3 or --C.sub.2 H.sub.5, R.sub.5 and R.sub.6 are each H or --CH.sub.3,R.sub.7 is C.sub.1 -C.sub.4 alkyl,R.sub.8 is H or C.sub.1 -C.sub.4 alkyl,R.sub.9 is H, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy optionally interrupted by oxygen,R.sub.10 and R.sub.12 are each H, CH.sub.3, Cl or OCH.sub.3, or together methylenedioxy,X is ##STR4## or N, and Z is --CH.sub.2 or --CO;in the form of racemates, enantiomers, diastereoisomeric antipode pairs, and non-toxic, pharmacologically acceptable acid addition salts thereof.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: March 3, 1987
    Assignee: Boehringer Ingelheim KG
    Inventors: Kurt Schromm, Anton Mentrup, Ernst-Otto Renth, Armin Fugner, Ilse Streller
  • Patent number: 4604468
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen or substituents of various types;R.sub.4 is hydrogen; alkyl of 1 to 5 carbon atoms; or optionally substituted aralkyl or 7 to 14 carbon atoms;R.sub.5 is a heterocycle;D is alkylene of 1 to 12 carbon atoms; andA is hydrogen or acyl;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as .alpha.- and .beta.-adrenergic receptor blocking agents and antidepressants.
    Type: Grant
    Filed: July 25, 1984
    Date of Patent: August 5, 1986
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Herbert Koppe, Anton Mentrup, Ernst-Otto Renth, Kurt Schromm, Wolfgang Hoefke, Gojko Muaceic
  • Patent number: 4581367
    Abstract: Compounds of the formula whereinHet is a heterocycle;n is an integer from 1 to 4, inclusive, preferably 2 or 3;R.sub.1 is H or acyl;R.sub.2 is H, R.sub.1 O, --NHSO.sub.2 R.sub.7, --NHCOR.sub.8, --NHCONHR.sub.8, --NH--CH.sub.2 --C.sub.6 H.sub.4 --R.sub.9, --CH.sub.2 OH, --CH.sub.2 SO.sub.2 R.sub.7, --CONHR.sub.8, halogen or --CN;R.sub.3 is H, halogen, R.sub.7 or --OR.sub.7 ; orR.sub.2 and R.sub.3, together with each other, are ##STR1## N.sub.4 is H, --CH.sub.3 or --C.sub.2 H.sub.5 ; R.sub.5 and R.sub.6 are each H or --CH.sub.3 ;R.sub.7 is C.sub.1 -C.sub.4 alkyl;R.sub.8 is H or C.sub.1 -C.sub.4 alkyl; andR.sub.9 is H, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy optionally interrupted by oxygen;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as the salts are useful as bronchospasmolytics, spasmolytics, muscle-relaxants, antiallergics and hypotensives.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: April 8, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Kurt Schromm, Anton Mentrup, Ernst-Otto Renth, Armin Fugner, Ilse Streller
  • Patent number: 4558061
    Abstract: Compounds of the formula ##STR1## wherein n is 1 or 2, R.sub.1 is hydrogen, --CO--R.sub.2 or --SO.sub.2 R.sub.3,R.sub.2 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or (alkyl of 1 to 4 carbon atoms)amino, andR.sub.3 is alkyl of 1 to 4 carbon atoms,and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bronchospasmolytics.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: December 10, 1985
    Assignee: Boehringer Ingelheim KG
    Inventors: Anton Mentrup, Kurt Schromm, Ernst-Otto Renth, Gojko Muacevic, Armin Fugner
  • Patent number: 4546102
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or trifluoromethyl;R.sub.2, R.sub.3 and R.sub.4 are each independently hydrogen, methyl or ethyl;R.sub.5 is hydrogen, alkyl of 1 to 8 carbon atoms, phenyl-(alkyl of 1 to 8 carbon atoms), cycloalkyl of 3 to 7 carbon atoms, (alkoxy of 1 to 4 carbon atoms) carbonyl-methyl, phenyl, substituted phenyl, naphthyl or substituted naphthyl; orR.sub.4 and R.sub.5, together with each other, are alkylene of 4 to 5 carbon atoms, optionally interrupted by --O-- or --NR.sub.6 --, where R.sub.6 is alkyl of 1 to 4 carbon atoms;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as cardiotonics.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: October 8, 1985
    Assignee: Boehringer Ingelheim KG
    Inventors: Ernst-Otto Renth, Anton Mentrup, Kurt Schromm, Werner Traunecker, Richard Reichl
  • Patent number: 4539323
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2, which may be identical to or different from each other, are each independently hydrogen, straight or branched alkyl of 1 to 8 carbon atoms or arylmethyl; orR.sub.1 and R.sub.2, together with each other, are --(CH.sub.2).sub.4 or --(CH.sub.2).sub.5 --; andR.sub.3 and R.sub.4, which may be identical to or different from each other, are each independently hydrogen, straight or branched alkyl of 1 to 4 carbon atoms or arylmethyl; orR.sub.3 and R.sub.4, together with each other, are --CH.sub.3 -- or --CH.sub.2 --CH.sub.2 --;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful for the treatment of cardiovascular diseases, especially hypertension.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: September 3, 1985
    Assignee: Boehringer Ingelheim KG
    Inventors: Anton Mentrup, Ernst-Otto Renth, Kurt Schromm, Wolfgang Hoefke, Wolfram Gaida
  • Patent number: 4460581
    Abstract: Compounds of the formula ##STR1## wherein A is a single bond, ##STR2## R.sub.1 is --OH, --0--acyl, chlorine or hydrogen; R.sub.2 is hydrogen, methyl or ethyl;R.sub.3 is ##STR3## m is 2, 3 or 4; n is 1, 2 or 3;R.sub.4 is hydrogen or lower alkyl;R.sub.5 is hydrogen, lower alkyl or, when R.sub.4 is hydrogen, also phenyl;R.sub.6, R.sub.7 and R.sub.8 are each hydrogen or methyl;R.sub.9 is hydrogen, --Ar, --OAr or --NH--CO--Ar;Ar is ##STR4## R.sub.10, R.sub.11 and R.sub.12 which may be identical to or different from each other, are each hydrogen, hydroxyl, methyl, methoxy, halogen, methylenedioxy, --NH--R.sub.13 or --CONH.sub.2 ; andR.sub.13 is hydrogen, acyl or lower alkylsulfonyl;and non-toxic, pharmaceutically acceptable acid addition salts thereof; the compounds as well as their salts are useful for the treatment of asthma, bronchitis, urticaria, conjunctivities, hay fever, colds and cardiovascular disorders, and for relaxation of the uterine musculature.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: July 17, 1984
    Assignee: Boehringer Ingelheim KG
    Inventors: Kurt Schromm, Anton Mentrup, Ernst-Otto Renth, Armin Fugner
  • Patent number: 4381309
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen or substituents of various types;R.sub.4 is hydrogen, alkyl of 1 to 5 carbon atoms, or optionally substituted aralkyl of 7 to 14 carbon atoms;R.sub.5 is a heterocycle;D is alkylene of 1 to 12 carbon atoms; andA is hydrogen or acyl;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as .alpha.- and .beta.-adrenergic receptor blocking agents and antidepressants.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: April 26, 1983
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Herbert Koppe, Anton Mentrup, Ernst-Otto Renth, Kurt Schromm, Wolfgang Hoefke, Gojko Muacevic