Polycyclo Ring System Having A 1,2-diazine Ring As One Of The Cyclos Patents (Class 544/233)
  • Patent number: 5639759
    Abstract: This invention relates to carbocyclic and heterocyclic fused-ring quinolinecarboxylic acid compounds, to pharmaceutical compositions comprising such compounds, and to methods of using such compounds for the treatment and/or prevention of organ transplantation rejection, graft versus host disease, autoimmune diseases, chronic inflammatory diseases, including but not limited to psoriasis and rheumatoid arthritis, and cancer in a mammal.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: June 17, 1997
    Assignee: The DuPont Merck Pharmaceutical Company
    Inventors: Ronald Louis Magolda, William John Pitts, Irina Cipora Jacobson, Carl Henry Behrens, Michael James Orwat, Douglas Guy Batt
  • Patent number: 5631256
    Abstract: Antimicrobial quinolone thiourea compounds of the general formula: ##STR1## wherein (1) A.sup.1, A.sup.2, A.sup.3, R.sup.1, R.sup.3, R.sup.4, and R.sup.6 form any of a variety of quinolone and related heterocyclic structures similar to those known in the art to have antimicrobial activity; and(2) (1) R.sup.1 is X, R.sup.3 is X, or both R.sup.1 and R.sup.3 are X; and X is the thiourea containing moietyand pharmaceutically-acceptable salts and biohydrolyzable esters thereof, and hydrates thereof.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: May 20, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Thomas P. Demuth, Jr., Ronald E. White
  • Patent number: 5624926
    Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C--R.sup.11 (wherein R.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: April 29, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5614516
    Abstract: The invention relates to new 12-amino-pyridazino-[4',5':3,4]-pyrrolo[2,1-a]isoquinolines of general formula (I) ##STR1## wherein --NR.sub.1 R.sub.2 represents an amino or substituted amino group, and acid addition salts thereof. The new active substances have potential use in pharmaceutical compositions for treating cardiac insufficiency and cerebral metabolic disorders.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: March 25, 1997
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Walter L osel, Otto Roos, Gerd Schorrenberg, Helmut Ensinger, Richard Reichl
  • Patent number: 5605900
    Abstract: The present invention relates to an adenosine uptake inhibitor and an agent for the myocardium protection or the prevention or treatment of inflammatory edema, comprising a 1,2,3,4-tetrahydro-2,4-dioxoquinazoline derivative represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, alkenyl, or substituted or unsubstituted aralkyl; R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent hydrogen, halogen, amino, mono- or di(lower alkyl)amino, lower alkanoylamino, nitro, cyano, substituted or unsubstituted lower alkyl, hydroxy, lower alkoxy, lower alkylthio, carboxy, lower alkoxycarbonyl, lower alkanoyl, aralkyloxy, or lower alkanoyloxy; R.sup.6, R.sup.7, R.sup.8, and R.sup.9 independently represent hydrogen, hydroxy, substituted or unsubstituted lower alkoxy, or aralkyloxy, or any adjoining two of them are combined to form methylenedioxy; R.sup.10 represents hydrogen or lower alkyl; and Y and Z independently represent N or C-R.sup.11 (wherein R.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: February 25, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeki Fujiwara, Daisuke Machii, Haruki Takai, Hiromi Nonaka, Hiroshi Kase, Kozo Yao, Michiyo Kawakage, Hideaki Kusaka, Akira Karasawa
  • Patent number: 5602131
    Abstract: A compound selected from those of general formula (I): ##STR1## wherein A represents a bivalent radical selected from ##STR2## and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and Z are as defined in the description,the isomers and pharmaceutically-acceptable acid or base addition salts thereof, and medicinal products containing the same which are useful in the treatment of depression and anxiety.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: February 11, 1997
    Assignee: Adir et Compagnie
    Inventors: Jean-Daniel Brion, Claude Thal, Luc Demuynck, Jean-Gilles Parmentier, Jean Lepagnol, Pierre Lestage, Jean-Fran.cedilla.ois Pujol, Pascal Schmitt, Pierre Potier
  • Patent number: 5576313
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and treatment of cancer.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: November 19, 1996
    Assignee: Merck & Co., Inc.
    Inventors: Thorsten E. Fisher, John S. Wai, J. Christopher Culberson, Walfred S. Saari
  • Patent number: 5574038
    Abstract: The invention discloses imidazo[1,5-a]quinoxalines (I) ##STR1## which do not contain an endocyclic carbonyl group that are useful as anxiolytic and sedative/hypnotic agents.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 12, 1996
    Assignee: The Upjohn Company
    Inventor: E. Jon Jacobsen
  • Patent number: 5554633
    Abstract: Compounds of formula (I), and salts and prodrugs thereof, wherein Q is optionally substituted phenyl or benzhydryl; X and Y are each H or together form a group=O; Z is O, S or NR.sup.9, where R.sup.9 is H or C.sub.1-6 alkyl; R.sup.1 represents H or C.sub.1-6 alkyl; R.sup.2 represents C.sub.1-6 alkyl substituted by CONR.sup.7 (CH.sub.2).sub.p R.sup.8 (where R.sup.7 is H or C.sub.1-6 alkyl, R.sup.8 is optionally substituted heteroaryl and p is 0, 1, 2, 3, 4, 5 or 6); R.sup.3 represents H, C.sub.1-6 alkyl or C.sub.2-6 alkynyl; R.sup.4 represents H, C.sub.1-6 alkyl or optionally substitute phenyl; R.sup.5 represents optionally substituted phenyl; R.sup.6 is H or C.sub.1-6 alkyl; and q is 0, 1, 2 or 3; are tachykinin antagonists useful in therapy.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: September 10, 1996
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventor: Martin R. Teall
  • Patent number: 5552409
    Abstract: This invention relates to substituted dihydropyridazinones, pyridazinones and related compounds, of the formula ##STR1## wherein A, Q, D and R.sup.1 are as defined within, compositions containing these compounds and methods of controlling agricultural and mammalian fungal diseases.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: September 3, 1996
    Assignee: Rohm and Haas Company
    Inventors: Enrique L. Michelotti, Anne R. Egan, Ronald Ross, Jr., Willie J. Wilson
  • Patent number: 5534484
    Abstract: There are provided novel (2-imidazolin-2-yl) fused heteropyridine compounds, and intermediate compounds for the preparation thereof, and a method for controlling a wide variety of annual and perennial plant species therewith.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 9, 1996
    Assignee: American Cyanamid Company
    Inventors: Barrington Cross, Marinus Los, Robert F. Doehner, Jr., David W. Ladner, Jerry L. Johnson
  • Patent number: 5527921
    Abstract: Peroxycarboxylic ester photoinitiators derived from aromatic nitrogen containing heterocyclic carboxylic acids are described. The heterocyclic aromatic ring may contain additional nitrogen atoms, be fused with another aromatic ring system, be substituted with an additional peroxycarboxylic ester group and/or be substituted with an electron group having a Hammett sigma value greater than 0.1. The peroxycarboxylic ester photoinitiators have been found to be useful in photopolymerizable compositions and photosensitive elements.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: June 18, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Jeanne E. Haubrich
  • Patent number: 5420275
    Abstract: An assay method which comprises utilizing chemiluminescence of a pyridopyridazine compound of the formula ##STR1## wherein R.sub.1 is a hydrocarbon group or a heterocyclic group each of which may be substituted and R.sub.2 is hydroxy group, thiol group, amino group or a monosubstituted amino group, and when R.sub.2 is a monosubstituted amino group, R.sub.2 may be taken together with R.sub.1 to form the ring; R.sub.3 is hydrogen atom, a hydroxy group which may be substituted, an amino group which may be substituted, a thiol group which may be substituted, a halogen atom, a heterocyclic group, nitro group, cyano group, carboxyl group which may be esterified or amidated, azido group, sulfo group or an organic sulfonyl group, provided that when R.sub.1 is an aliphalic group, R.sub.3 is not hydrogen atom; and X is oxygen atom or sulfur atom/or a salt thereof; and a novel compound of the formula (I) wherein the symbols are as defined above with proviso that R.sub.3 is hydrogen atom, R.sub.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: May 30, 1995
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirotomo Masuya, Yoshio Aramaki
  • Patent number: 5380718
    Abstract: Arthropodicidal tetrahydropyridazines of Formulae I and II, ##STR1## wherein Q,X,X.sup.1 Y, and G are as defined in the text, compositions containing them and their use in the control of arthropods.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 10, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles R. Harrison, George P. Lahm, Thomas M. Stevenson
  • Patent number: 5340808
    Abstract: Fused pyridazinoquinazoline compounds, salts thereof, methods of production, intermediates in their production, pharmaceutical compositions containing said compounds and methods for treating neurodegenerative disorders using said compositions are disclosed.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: August 23, 1994
    Assignee: Warner Lambert Company
    Inventors: Juan C. Jaen, Bradley W. Caprathe
  • Patent number: 5334589
    Abstract: Compositions of a quinolone carboxylic acids useful for oral or parenteral administration to a human or veterinary patient are disclosed which comprise quinolone carboxylic acid--metal ion--acid complexes in combination with a physiologically acceptable carrier and having a pH of about 4 to about 10, as well as a method for their production and use in treatment. Such compositions are found to cause unexpectedly low levels of vein irritation upon intravenous administration.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: August 2, 1994
    Assignee: Abbott Laboratories
    Inventors: Laman A. Al-Razzak, Francisco J. Alvarez
  • Patent number: 5302589
    Abstract: The present invention relates to certain substituted 17 .beta.-substituted carbonyl-6-azaandrost-4-en-3-ones of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 arei) independently hydrogen or lower alkyl and the bond between the carbons bearing R.sup.1 and R.sup.2 is a single or a double bond, orii) taken together are a --CH.sub.2 -- group to form a cyclopropane ring, and the bond between the carbons bearing R.sup.1 and R.sup.2 is a single bond;X is ##STR2## wherein R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are independently hydrogen or lower alkyl,p and q are independently either 0 or 1;R.sup.3 is lower alkyl, lower alkenyl, lower cycloalkyl, lower alkoxy, thiopyridyl, adamantyl, --NR.sup.9 R.sup.10 or --Ar--NR.sup.9 R.sup.10whereinR.sup.9 and R.sup.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: April 12, 1994
    Assignee: Glaxo, Inc.
    Inventors: Stephen V. Frye, David Middlemiss, Francis G. Fang
  • Patent number: 5180823
    Abstract: The present invention relates to a process for preparing bicyclic compounds and intermediates thereof. The compounds are useful as anti-allergic, anti-inflammatory and/or cytoprotective agents.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: January 19, 1993
    Assignee: Schering Corporation
    Inventors: Dinesh Gala, Martin Steinman, Ashit Ganguly
  • Patent number: 5110924
    Abstract: The invention relates to an adduct-aldehyde of the general formula ##STR1## wherein R is a hydrogen atom or an optionally etherified or esterified hydroxy group,R.sub.1 is an optionally etherified or esterified hydroxy group, andZ is a sulphonyl group or a group of the general formula ##STR2## wherein A and B are equal or different and represent C.sub.1 -C.sub.4 alkoxy groups, or wherein A and B together constitute a phenylimino group or a o-phenylene group.The invention also relates to a method of preparing said adduct-aldehyde and to the use of said aldehyde as an intermediate for the preparation of vitamin-D compounds.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: May 5, 1992
    Assignee: Duphar International Research B.V.
    Inventors: Sebastianus J. Halkes, Wilhelmus R. M. Overbeek
  • Patent number: 5095103
    Abstract: Heterocyclic compounds of the formula ##STR1## with the substituent meanings given in the description, and derivatives thereof are suitable for dyeing and pigmenting the most diverse substrates.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: March 10, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hans Hochstetter
  • Patent number: 5079360
    Abstract: The process for making certain bicyclic compounds and intermediates which are useful as anti-allergic, anti-inflammatory and cytoprotective agents.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: January 7, 1992
    Assignee: Schering Corporation
    Inventors: Dinesh Gala, Martin Steinman, Ashit Ganguly
  • Patent number: 5055580
    Abstract: Derivatives of 9-oxo-1,9a,10-triaza-9-hydroanthracene of the general formula I ##STR1## with the exception of three compounds in which R denotes a hydrogen atom, halogen atom, an alkyl-C.sub.1 -C.sub.4, alkoxy-C.sub.1 -C.sub.4 or denotes a trihalogenomethyl group, a --CO--NH.sub.2, --CO--NH--(alkyl-C.sub.1 -C.sub.4) or --CO--N(alkyl-C.sub.1 -C.sub.4).sub.2 group or phenyl, alkyl-C.sub.1 -C.sub.4, --NH.sub.2, --NH(alkyl-C.sub.1 -C.sub.4), --N(alkyl-C.sub.1 -C.sub.4).sub.2 or an alkylene-C.sub.1 -C.sub.4 --OSO.sub.3 H group, bound via the bridge member --S--, --SO--or --SO.sub.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: October 8, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erwin Dietz, Frank Prokschy
  • Patent number: 5047554
    Abstract: This invention relates to novel 3-substituted-2-oxindole derivatives which are inhibitors of prostaglandin H.sub.2 synthase, 5-lipoxygenase and interleukin-1 biosynthesis. The compounds of the invention are useful as inhibitors of prostaglandin H.sub.2 synthase and interleukin-1 biosynthesis, per se, and as analgesic, antiinflammatory and antiarthritic agents in the treatment of chronic inflammatory diseases. This invention also relates to pharmaceutical compositions comprising said 3-substituted-2-oxindole derivatives; to methods of inhibiting prostaglandin H.sub.2 synthase and biosynthesis of interleukin-1; and to treating chronic inflammatory diseases in a mammal with said compounds. Further, this invention relates to certain novel carboxylic acids useful as intermediates in the preparation of the 3-substituted-2-oxindole derivatives of this invention and to a process for the preparation of the 3-substituted-2-oxindole derivatives.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: September 10, 1991
    Assignee: Pfizer Inc.
    Inventors: Frederick J. Ehrgott, Carl J. Goddard, Gary R. Schulte
  • Patent number: 5030728
    Abstract: A molecule capable of forming stable complexes with urea, guanidine or amidine compounds and the acid addition salts thereof comprises a nucleus of heterocyclic rings.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: July 9, 1991
    Assignee: The Research Foundation State University of New York
    Inventor: Thomas W. Bell
  • Patent number: 4990529
    Abstract: 2-Pyrazoline derivatives of the formula (A): ##STR1## where R.sup.1 is a pyridyl, a pyrazyl or an alkoxyl group; and R.sup.2 is a hydrogen atom, an alkyl, a pyridyl, a furyl, phenyl or a substituted phenyl group, and to a process for producing the same. Therapeutic agents for treating cerebrovascular diseases containing, as the active ingredient, a 2-pyrazoline derivative represented by the formula (G): ##STR2## where R.sup.3 is a hydrogen atom, an alkyl, acetyl, an alkoxycarbonyl, an amino, benzoyl, a substituted benzoyl, a pyridylcarbonyl, a furylcabonyl, a thienylcarbonyl, a pyrazylocarbonyl, an N-substituted carbamoyl, an N-substituted thiocarbamoyl, or carboxyl group; and R.sup.4 is a hydrogen atom, an alkyl, a pyridyl, a thienyl, a furyl, cyclohexyl, phenyl or a substituted phenyl group or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: February 5, 1991
    Assignee: Mitsui Toatsu Chemicals
    Inventors: Hiroyuki Yamashita, Makoto Odate, Hajime Iizuka, Hiroshi Kawazura, Yoshio Shiga, Hiroshi Namekawa
  • Patent number: 4834904
    Abstract: Optically active nitrogen-containing heterocycles of the formula I according to claim 1 are suitable as components for ferroelectric liquid crystalline materials.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: May 30, 1989
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Joachim Krause, Rudolf Eidenschink, Klaus Bofinger, Bernhard Scheuble, Thomas Geelhaar
  • Patent number: 4694085
    Abstract: The invention relates to 5,6-dihydro-pyrrolo[2,1-a]isoquinolines of the formula ##STR1## wherein R, R.sup.2, R.sup.3, and R.sup.7, which may be identical or different, each represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms;R.sup.1 represents a cyano, hydroxycarbonyl, or alkoxycarbonyl group having from 1 to 4 carbon atoms or a primary or secondary, substituted or unsubstituted, aliphatic, cycloaliphatic, araliphatic, aromatic, or heterocyclic aminocarbonyl group;R.sup.4 and R.sup.8, which may be identical or different, each represent a hydrogen atom, a hydroxyl group, an alkoxy or alkylthio group having up to 4 carbon atoms, or an NR.sup.9 R.sup.10 group;R.sup.5 and R.sup.6, which may be identical or different, each represent a hydroxy atom or an alkoxy or alkylthio group having from 1 to 4 carbon atoms, or together represent an --O--CH.sub.2 --O--, --O--CH.sub.2 --CH.sub.2 --O--, or --O--CH.dbd.CH--O group;R.sup.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: September 15, 1987
    Assignee: Boehringer Ingelheim KG
    Inventors: Walter Losel, Otto Roos, Gerd Schnorrenberger
  • Patent number: 4526890
    Abstract: 3,6,7,8-Substituted-s-triazolo-pyridazine compounds such as 7,8-dimethyl-6-morpholino-3-methyl-s-triazolo[4,3-b]pyridazine or 7,8-dimethyl-6-(1-pyrrolidinyl)-3-(isopropyl)-s-triazolo-[4,3-b]pyridazine are prepared by the reaction of a carboxylic acid with a substituted 3-hydrazino-6-halo-pyridazine followed by the reaction of the resulting 6-halotriazolopyridazine with a corresponding base. The compounds have pharmacological activity as bronchodilators.
    Type: Grant
    Filed: April 7, 1981
    Date of Patent: July 2, 1985
    Assignee: The Dow Chemical Company
    Inventors: Norton P. Peet, Shyam Sunder
  • Patent number: 4426387
    Abstract: The invention concerns compounds of formula ##STR1## and acid addition and quaternary ammonium salts thereof, wherein the dotted line represents an optional bond, Ar represents a ring system of formula ##STR2## in which Q is O,S,--CR.sup.7 .dbd.CR.sup.8 --, --N.dbd.CR.sup.8 -- and --N.dbd.N--; R.sup.4, R.sup.5 and R.sup.6, and R.sup.7 and R.sup.8 when present, each represent hydrogen or defined substituents and additionally either R.sup.4 and R.sup.5 when adjacent or R.sup.6 and R.sup.8 when adjacent, together with the carbon atoms to which they are attached also represent a fused five or six membered carbocyclic or heterocyclic ring optionally carrying one or more defined substituents; R is an optionally substituted aryl or heteroaryl radical or a cycloalkyl radical containing 5 to 7 carbon atoms; R.sup.1, R.sup.2, R.sup.3 and R.sup.9 are each hydrogen or a lower alkyl group; n is 0 or 1; X is .dbd.O, .dbd.S or .dbd.NH; Y is --O-- or a direct bond and Z is --CO-- or --CH.sub.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: January 17, 1984
    Assignee: John Wyeth & Brother Ltd.
    Inventors: John L. Archibald, Terrence J. Ward
  • Patent number: 4383995
    Abstract: This invention relates to the derivatives of the following formula: ##STR1## in which R, R', R.sub.1, R.sub.2 are hydrogen atoms or hydrocarbonated radicals, and X is an oxo, hydroxy, imino or aminal radical.These compounds have anti-fibrillating activity.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: May 17, 1983
    Inventors: Bernard Delbarre, Louis Mavoungou-Gomes
  • Patent number: 4380642
    Abstract: A process for the simultaneous preparation of pyrazole and triazoles by reacting a triazoline compound with a basic compound and then oxidizing the product with hydrogen peroxide.The triazoles and pyrazole obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and drugs.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: April 19, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Rieber, Rolf Platz, Werner Fuchs
  • Patent number: 4355164
    Abstract: Provided are pyridothienopyridazine compounds of the formula ##STR1## wherein R.sub.1 is alkyl, alkenyl, alkynyl, halogen, nitro, cyano, carboxy, carboxyalkyl, carbalkoxy, alkanoyl, trihalomethyl, aryl, aralkyl, hetero, thio, thioalkyl, alkylmercapto, hydroxy, hydroxyalkyl, alkoxy, amino, aminoalkyl, alkylamino, sulfinyl, sulfonyl or methylenedioxy,n is an integer from 0 to 3 inclusive, andR.sub.2 and R.sub.3 are independently hydrogen, alkyl, alkenyl, alkinyl, hydroxy, hydroxyalkyl, alkoxy, halogen, amino, aminoalkyl, alkylamino, alkanoylamino, thio, thioalkyl, alkylmercapto, carboxy, carbalkoxy, alkylsulfinyl, alkylsulfonyl, arylsulfinyl, or arylsulfonyl, wherein the alkyl groups contain from 1 to 6 carbon atoms, the alkenyl and alkynyl groups contain from 2 to 6 carbon atoms, and the aryl groups contain from 6 to 10 carbon atoms. These compounds have anti-allergy activity.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: October 19, 1982
    Assignee: USV Pharmaceutical Corporation
    Inventor: Raymond D. Youssefyeh
  • Patent number: 4282356
    Abstract: A compound, with hypoglycaemic activity, having formula (II) or a pharmaceutically acceptable quaternary ammonium or acid addition salt thereof: ##STR1## wherein X represents oxygen or sulphur;n represents zero or 1;R.sup.7 represents hydrogen or C.sub.1-6 alkyl;R.sup.1 and R.sup.2 are the same or different and represent hydrogen, C.sub.1-6 alkyl, phenyl, benzyl, or C.sub.3-6 cycloalkyl;R.sup.3 represents hydrogen, C.sub.1-6 alkyl, phenyl or benzyl;R.sup.4 represents hydrogen or C.sub.1-6 alkyl;R.sup.5 represents C.sub.1-6 alkyl, phenyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl, and C.sub.1-6 alkoxy; or benzyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.1-6 alkoxy; or R.sup.4 and R.sup.5 together represent the remaining members of a 5- or 6-membered ring optionally containing an oxygen, sulphur or additional nitrogen atom and being optionally substituted with C.sub.1-6 alkyl, carboxy or C.sub.1-6 alkoxycarbonyl; andR.sup.
    Type: Grant
    Filed: June 10, 1980
    Date of Patent: August 4, 1981
    Assignee: Beecham Group Limited
    Inventor: Barrie C. C. Cantello
  • Patent number: 4250177
    Abstract: The invention relates to substituted 10-oxo-10H-pyridazino(6,1-b)quinazoline-2-carboxylic acids having the formula: ##STR1## wherein R.sub.1 is hydrogen, halogen; R.sub.2 is hydrogen, lower alkyl containing one to three carbon atoms, or wherein R.sub.1 and R.sub.2 taken together with the carbon atoms to which they are attached in a benzo ring, and the pharmaceutically acceptable salts thereof. These compounds are useful as anti-allergic agents.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: February 10, 1981
    Assignee: Warner-Lambert Company
    Inventors: Charles F. Schwender, Brooks R. Sunday
  • Patent number: 4133880
    Abstract: N.sup.2 -substituted-L-arginine esters and amides, and the pharmaceutically acceptable acid addition salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: January 9, 1979
    Assignees: Mitsubishi Chemical Industries Ltd., Shosuke Okamoto
    Inventors: Shosuke Okamoto, Akiko Hijikata, Ryoji Kikumoto, Yoshikuni Tamao, Kazuo Ohkubo, Tohru Tezuka, Shinji Tonomura