Patents Examined by Robert Gerstl
  • Patent number: 6392053
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I or a pharmaceutically acceptable salt thereof, wherein: R1, R2, R4, R5, R6, R8, R9, R12 and R13 are each independently hydrogen, alkyl, aryl or heteroaryl; R3, R7, R10 and R11 are each independently hydrogen, alkyl, aryl, heteroaryl, halogen, hydroxy or alkoxy; and X is CH or N, which are novel, potent inhibitors of cyclin dependent kinases (cdks). The present invention also concerns a new process for the preparation of formylarylacetates and formylarylacetic acids.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 21, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6392054
    Abstract: The present invention provides for novel 3-thiazolines comprising the formula where R1, R2 and R3 are identical or different and denote hydrogen or a lower alkyl, wherein said lower alkyl denotes an unbranched or branched hydrocarbon having 1 to 3 carbon atoms. These novel 3-thiazolines can be used as odorants and flavorings having an olfactory impression.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 21, 2002
    Assignee: Haarmann & Reimer GmbH
    Inventors: Matthias Güntert, Stefan Lambrecht, Wolfgang Engel, Peter Schieberle
  • Patent number: 6391899
    Abstract: There is disclosed a genus of compounds and pharmaceutical compositions that are protective for mitigating damage associated with tissue ischemia, particularly stroke (CNS ischemia), and ischemia of the myocardium. The present invention further provides a method for treating tissue damage caused by ischemia. Lastly, the present invention provides a method for treating tissue damage caused by providing a compound that inhibits the cytotoxic activity of 3-aminopropanal.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: May 21, 2002
    Assignee: North Shore—Long Island Jewish Research Institute
    Inventors: Kevin J. Tracey, Yousef Al-Abed, Svetlana Ivanova, Richard J. Bucala
  • Patent number: 6392052
    Abstract: 3-[N′-(benzoyl)thioureido]-5-substituted-1,2,4-thiadiazoles are debenzoylated in an aqueous KOH solution. This process provides the 5-substituted-3-thioureido-1,2,4-thiadiazoles in unexpectedly high yield and purity as compared to similar processes employing NaOH.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 21, 2002
    Assignee: The Procter & Gamble Company
    Inventor: Joseph Kofi Agyin
  • Patent number: 6387937
    Abstract: Compounds of the formula where W is n is 0, 1, or 2; m is 0, 1, 2, or 3: Y and G are each independently oxygen or sulfur; Z is —O—, —S—, —NH, or —CH2; R1 is hydrogen, C1 to C8 alkyl, substituted C1 to C8 alkyl substituted with one hydroxy, C3 to C8 ; alkenyl, C3 to C8 alkynyl, aryl, C1 to C3 alkylaryl, C1 to C3 alkylheteroaryl, or —Q—R4; R2 and R3 are each independently hydrogen, Cl1 to C8 alkyl, aryl, C1 to C3 alkylaryl, or C1 to C3 alkylheteroaryl; R4 is cyano, trifluoromethyl, —COR8, —CO2R9, —CONR9R10, —OR8, —SO2NR8R10, or —S(O)4R9; R9 and R10 are each independently hydrogen, C1 to C8 alkyl, C1 to C3 alkylaryl, aryl, or R9 and R10 may together be taken to form a three- to seven-membered alkyl ring or a three- to seven-membered heteroalkyl ring having 1 heteroatom of O; Q is C1 to C3 alkyl; R11 is hydrogen, —OR12, or —NHCOR12; R12 is hydrogen, C1 to C4 alkyl, aryl, or C1 to C3
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: May 14, 2002
    Assignee: Pfizer Inc.
    Inventors: John Eugene Macor, Martin James Wythes
  • Patent number: 6388087
    Abstract: The novel compound 3,3-Dinitro-4,4′-hydrozofurazan and the methods of preparation. The method of preparation 3,3-Dinitro-4,4′-hydrazofurazan which comprises partially reducing 3,3′-Dinitro-4,4′-azoxyfurazan. The method of preparing 3,3′-Dinitro-4,4′-hydrazofurazan by the partial reduction of 3,3′-Dinitro-4,4′-azofurazan.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 14, 2002
    Assignee: Fluorochem Inc.
    Inventors: Abdollah Bashir-Hashemi, Kurt Baum
  • Patent number: 6387941
    Abstract: Compounds of the formula where W is n is 0, 1, or 2; m is 0, 1, 2, or 3: Y and G are each independently oxygen or sulfur; Z is —O—, —S—, —NH, or —CH2; R1 is hydrogen, C1 to C8 alkyl, substituted C1 to C8 alkyl substituted with one hydroxy, C3 to C8 alkenyl, C3 to C8 alkynyl, aryl, C1 to C3 alkylaryl, C1 to C3 alkylheteroaryl, or —Q—R4; R2 and R2 are each independently hydrogen, C1 to C6 alkyl, aryl, C1 to C3 alkylaryl, or C1 to C3 alkylheteroaryl; R4 is cyano, trifluoromethyl, —COR9, —CO2R9, —CONR9R10, —OR9, —SO2NR(R10, or —S(O)4R8; R9 and R10 are each independently hydrogen, C1 to C8 alkyl, C1 to C3 alkylaryl, aryl, or R9 and R10 may together be taken to form a three- to seven-membered alkyl ring or a three- to seven-membered heteroalkyl ring having 1 heteroatom of O; Q is C1 C3 alkyl; R11 is hydrogen, —Or12, or —NHCOR12; R12 is hydrogen, C1 to C6 alkyl, aryl, or C1 to C3 alkyl-
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: May 14, 2002
    Assignee: Pfizer Inc.
    Inventors: John Eugene Macor, Martin James Wythes
  • Patent number: 6387903
    Abstract: The present invention is directed to compounds which inhibit prenyl-protein transferases, farnesyl-protein transferase and geranylgeranyl-protein transferase type I, and the prenylation 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 geranylgeranyl-protein transferase type I and the prenylation of the oncogene protein RAS.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: May 14, 2002
    Assignee: Merck & Co., Inc.
    Inventors: Christopher J Dinsmore, John H. Hutchinson, Theresa M. Williams
  • Patent number: 6384075
    Abstract: A compound of the formula (I): wherein: for example, a compound below: wherein: R1 is CH3, H or Na; and X1—X2—X3 is: or its salt or a hydrate thereof is useful as PGD2 antagonist and can be used as a drug for treating diseases in which mast cell dysfunction is involved, for example, systemic mastocytosis and disorder of systemic mast cell activation, and also tracheal contraction, asthma, allergic rhinitis, allergic conjunctivitis, urticaria, injury due to ischemic reperfusion, and as an anti-inflammatory agent. It is particularly useful in the treatment of nasal occlusion.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: May 7, 2002
    Assignee: Shionogi & Co., Ltd.
    Inventors: Mitsuaki Ohtani, Akinori Arimura, Tatsuo Tsuri, Junji Kishino, Tsunetoshi Honma
  • Patent number: 6384230
    Abstract: Thiazole derivatives of formula II, in which R1 means C1-C4 alkyl, R2 means any protective group that can be chelated, R3 means hydrogen or C1-C4 alkyl, Y means CO2R4, CHO, CH—CH2 or CH2R5, whereby R4 stands for C1-C4 alkyl and an optionally substituted benzyl group, R5 stands for halogen, hydroxy, p-toluenesulfonate and —OSO2B and B stands for C1-C4 alkyl or C1-C4 perfluoroalkyl, can be produced free of diastereomers and are suitable for the production of epothilone A and epothilone B and derivatives thereof.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: May 7, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Johann Mulzer, Anreas Mantoulidis, Elisabeth Oehler
  • Patent number: 6384215
    Abstract: The present invention provides new thioester derivatives of 4-halogeno-2-methoxyimino-3-oxo-butyric acid of the general formula (I), also, the invention provides a method by which the said thioester derivatives can be prepared by reacting 4-halogeno-2-methoxyimino-3-oxo-butyric acid of the general formula (II) with 2-mercapto-5-substituted-1,3,4-oxadiazoles of the general formula (III) in a solvent, in the presence of DMF/POCl3 and in presence of an organic base and if desired the so obtained thioester derivatives so obtained are reacted with 7-amino-cephem carboxylic acids of the general formula (V) to produce condensed products which are insitu reacted with thiourea to get cephalosporin antibiotic compounds having the general formula (VI).
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: May 7, 2002
    Assignee: Orchid Chemicals & Pharmaceuticals Ltd.
    Inventors: Pandurang Balwant Deshpande, Parven Kumar Luthra
  • Patent number: 6380233
    Abstract: Compounds of the formula where W is n is 0, 1, or 2; m is 0, 1, 2, or 3: Y and G are each independently oxygen or sulfur; Z is —O—, —S—, —NH, or —CH2; R1 is hydrogen, C1 to C8 alkyl, substituted C1 to C8 alkyl substituted with one hydroxy, C3 to C8 alkenyl, C3 to C8 alkynyl, aryl, C1 to C3 alkylaryl, C1 to C3 alkylheteroaryl, or —Q—R4; R2 and R3 are each independently hydrogen, C1 to C6 alkyl, aryl, C1 to C3 alkylaryl, or C1 to C3 alkylheteroaryl; R4 is cyano, trifluoromethyl, —COR8, —CO2R8, —CONR8R10, —OR9, —SO2NR9R10, or —S(O)4R8; R8 and R10 are each independently hydrogen, C1 to C8 alkyl, C1 to C3 alkylaryl, aryl, or R9 and R10 may together be taken to form a three- to seven-membered alkyl ring or a three- to seven-membered heteroalkyl ring having 1 heteroatom of O; Q is C1 to C3 alkyl; R11 is hydrogen, —OR12, or —NHCOR12; R12 is hydrogen, C1 to C6 alkyl, aryl, or C1 to C3 alk
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: April 30, 2002
    Assignee: Pfizer Inc
    Inventors: John Eugene Macor, Martin James Wythes
  • Patent number: 6380251
    Abstract: The invention relates to the use of cyclopentane heptan(ene)oic acid, 2-thiocarbamoyloxy and carbamoyloxy as therapeutic agents e.g. as ocular hypotensives.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: April 30, 2002
    Assignee: Allergan Sales, Inc.
    Inventor: Robert M. Burk
  • Patent number: 6380238
    Abstract: For use in therapy a chemical compound of formula (I), wherein R1 to R3 are independently selected from hydrogen and alkyl; R4 to R7 are independently selected from hydrogen, halogen, hydroxy, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio, arylthio, alkylsulfoxyl, alkylsulfonyl, arylsulfoxyl, arylsulfonyl, amino, monoalkylamino, dialkylamino, nitro, cyano, carboxaldehyde, alkylcarbonyl, arylcarbonyl, aminocarbonyl, monoalkylaminocarbonyl, dialkylaminocarbonyl, alkoxycarbonylamino, aminocarbonyloxy, monoalkylaminocarbonyloxy, dialkylaminocarbonyloxy, monoalkylaminocarbonylamino and dialkylaminocarbonylamino, wherein at least one of R4 to R7 is a substituent group other than hydrogen, and pharmaceutically acceptable salts and prodrugs thereof, particularly for the treatment of disorders of the central nervous system; damage to the central nervous system; cardiovascular disorders; gastrointestinal disorders; diabetes insipidus, and sleep apnea, and especially for the treatment of obesit
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: April 30, 2002
    Assignee: Vernalis Research Limited
    Inventors: David Reginald Adams, Jonathan Mark Bentley, Jonathan Richard Anthony Roffey, Richard John Hamlyn, Suneel Gaur, Matthew Alexander James Duncton, David Bebbington, Nathaniel Julius Monck, Claire Elizabeth Dawson, Robert Mark Pratt, Ashley Roger George
  • Patent number: 6380230
    Abstract: The present invention relates to cholecystokinin (CCK)-agonist substituted thiazoles of formula: in which R1 is a substituted phenyl group, R2 is a group chosen from CH2—R7, (CH2)2—R7, S—CH2—R7, CH2—S—R7 and (C5-C8)alkyl with R7 being a (C5-C7)cycloalkyl group, and R3 is a group with R8 being a group (CH2)nR15 or and R15 being COOH or COO(C1-C4)alkyl. The invention also relates to a process for the preparation of the pharmaceutical compositions containing them and to their uses for the preparation of medicines.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 30, 2002
    Assignee: Sanofi-Synthelabo
    Inventors: Roger Brodin, Robert Boigegrain, Eric Bignon, Jean Charles Molimard, Dominique Olliero
  • Patent number: 6380250
    Abstract: The invention relates to the use of cyclopentane heptan(ene)oic acid, 2-thiocarbamoyloxy and carbamoyloxy as therapeutic agents e.g. as ocular hypotensives.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: April 30, 2002
    Assignee: Allergan Sales, Inc.
    Inventor: Robert M. Burk
  • Patent number: 6380434
    Abstract: Disclosed herein are fullerene derivatives of the formula, F(—E)n(—R1)p(—R2)q, in which F is a fullerene core; E is a nucleophilic substituent; R1 is an amino group or a hydroxyl group; R2 is an epoxide group and n is 1-30; p is 1-20; and q is 0-10. Also disclosed is a method of preparing such derivatives using polynitrofullerenes or polycyclosulfated fullerenes as intermediates.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 30, 2002
    Inventor: Long Y. Chiang
  • Patent number: 6376522
    Abstract: The present invention relates to the use of 4-hydroxyisothiazole compounds as antimicrobially active substances, certain new 4-hydroxyisothiazole compounds and a process for their preparation.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Werner Hölzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Dinesh Narenda Rele, Sitaram Pal, Asawari Bhikaji Mahtre, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna
  • Patent number: 6369094
    Abstract: The present invention is concerned with a crystalline, polymorphic form of a compound of formula (I) characterized by a powder X-ray diffraction pattern obtained using copper K-alpha1 radiation (&lgr;=0.15046 nm) which shows main peaks at 9.28, 10.38, 11.37, 12.40, 16.84, 17.46, 17.53, 17.78, 17.98, 19.48, 20.70, 21.29, 21.45, 22.21, 22.64, 23.08, 25.20 and 25.79. The invention also relates to processes for the preparation of said form, to pharmaceutical compositions containing same and to its use in medicine, particularly the treatment of conditions for which an agonist of 5-HT1 receptors is indicated, for example, migraine.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: April 9, 2002
    Assignee: Pfizer Inc.
    Inventors: Arthur Bentley, Simon Arnold Howard-Field, Ronald James Ogilvie
  • Patent number: 6369088
    Abstract: Substituted 3-phenyl-5-alkoxy-1,3,4-oxadiazol-2-ones of the formula 1 are described, in which R1 is substituted C1-C6-alkyl and C3-C9-cycloalkyl, R2, R3, R4 and R5 are hydrogen, halogen, nitro, C1-C4-alkyl, C1-C9-alkyloxy, substituted C6-C10-aryl-C1-C4-alkyloxy, C6-C10-aryloxy, C6-C10-aryl, C3-C8-cycloalkyl or O—C3—C8-cycloalkyl, or 2-oxopyrrolidin-1-yl, 2,5-dimethylpyrrol-1-yl or NR6-A-R7, with the proviso that R2, R3, R4 and R5 are not simultaneously hydrogen, and at least one of the radicals R2, R3, R4 or R5 is the radical 2-oxopyrrolidin-1-yl, 2,5-dimethylpyrrol-1-yl or NR6-A-R7, wherein R6=hydrogen, C1-C4-alkyl or substituted C6-C10-aryl-C1-C4-alkyl, A=a single bond, COn, SOn or CONH, n=1 or 2, R7=hydrogen, substituted C1-C18-alkyl, C2-C18-alkenyl, C6-C10-aryl-C1-C4-alkyl, C5-C8-cycloalkyl-C1-C4-alkyl, C5-C8-cycloalkyl, C6-C10-aryl-C2-C6-alkenyl, C6-C10-aryl, biphenylyl, biphenylyl-C1-C4-alkyl, indanyl, or the group Het-(CH2)r—, wherein r&eq
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: April 9, 2002
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Karl Schoenafinger, Stefan Petry, Guenter Mueller, Karl-Heinz Baringhaus