Patents Represented by Attorney, Agent or Law Firm Thomas E. Jackson
  • Patent number: 5294620
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, Ra, Rb, A, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: March 15, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Arnold H. Ratcliffe, Robert J. Pearce, Keith H. Gibson, Robin Wood, Brian B. Masek
  • Patent number: 5294636
    Abstract: A physical form of N-[4-[5 -(cyclopentyloxycarbonyl)amino-1-methyl-indol-3-ylmethyl]-3-methoxybenzoyl ]-2-methylbenzenesulphonamide substantially free of other physical forms, which form is crystalline, has an X-ray powder diffraction pattern with specific peaks occuring at 2.theta.=8.1, 13.7, 16.4, 20.5 and 23.7.degree. and an infra-red spectrum (0.5% in KBr) having sharp peaks at 3370, 1670, 1525, 1490, 1280, 890, 870 and 550 cm.sup.-1, a process for its preparation and pharmaceutical compositions containing it. Also disclosed is a flowable preparation of the physical form which is in the form of soft pellets, and a process for obtaining this preparation.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: March 15, 1994
    Assignee: Imperial Chemical Industries plc
    Inventors: Martin P. Edwards, John D. Sherwood
  • Patent number: 5286740
    Abstract: The present invention concerns novel carbamoyl derivatives of formula I, set out herein, which antagonize the pharmacological actions of one or more of the arachidonic acid metabolites known as leukotrienes, making them useful whenever such antagonism is desired, such as in the treatment of those diseases in which leukotrienes are implicated, for example, in the treatment of allergic or inflammatory diseases, or of endotoxic or traumatic shock conditions. The invention also provides pharmaceutical compositions containing the novel derivatives for use in such treatments, methods for their use and processes and intermediates for the manufacture of the novel derivatives.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: February 15, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventor: Robert T. Jacobs
  • Patent number: 5280125
    Abstract: A process for the preparation of a 3-alkylated indole, which comprises:a) reacting a N-(2-nitrostyryl) enamine with an alkylating agent to afford an imine salt,b) optionally reacting the imine salt with water to afford a (2-nitrophenyl)acetaldehyde, andc) reacting the imine salt or the (2-nitrophenyl)acetaldehyde with a reducing agent capable of selectively reducing the nitro group, to afford the desired 3-alkylated indole.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: January 18, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert T. Jacobs, Gerard F. Costello, Stephen A. Brook, Peter J. Harrison
  • Patent number: 5274118
    Abstract: A process for the preparation of (2R)-methyl-4,4,4-trifluorobutylamine, or an acid addition salt thereof which comprisesa) acylating an optically active amine with 2-methyl-4,4,4-trifluorobutanoic acid or a reactive derivative thereof to afford a butyramide;b) separating (R)-diastereomeric butyramide from (S)-diastereomeric butyramide; andc) converting the (R)-diastereomeric butyramide into the desired (2R)-methyl-4,4,4-trifluorobutylamine, or an acid addition salt thereof. The product may be acylated with a carboxylic acid of formula III ##STR1## wherein U is carboxy, or a reactive derivative thereof to afford (R)-4-[5-(N-[4,4,4-trifluoro-2-methylbutyl]carbamoyl)-1-methylindol-3-yl-m ethyl]-3-methoxy-N-o-tolylsulphonylbenzamide. The indole is useful as a leukotriene antagonist, for example in the treatment of asthma or allergic rhinitis.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: December 28, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert T. Jacobs, Andrew G. Brewster, George J. Sependa
  • Patent number: 5272163
    Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the amides and pharmaceutical compositions containing them.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: December 21, 1993
    Assignees: Imperial Chemical Industries PLC, Imperial Chemical House
    Inventors: Keith Russell, Cyrus J. Ohnmacht, Keith H. Gibson
  • Patent number: 5270301
    Abstract: The present invention relates to certain fluoro-amide derivatives, as described herein, which are human leukocyte elastase (HLE) inhibitors making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated, including treatment of tissue degenerative diseases such as pulmonary emphysema. The invention also includes intermediates useful in the synthesis of these fluoro-amide derivatives, processes for preparing them, pharmaceutical compositions containing such peptide derivatives and methods for their use.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: December 14, 1993
    Assignee: ICI Americas Inc.
    Inventor: Donald J. Wolanin
  • Patent number: 5266570
    Abstract: Compounds of formula I, Ia or Ib and pharmaceutically acceptable salts thereof, useful in the treatment of neuropsychiatric disorders such as psychoses; pharmaceutical compositions comprising a compound of formula I and a pharmaceutically acceptable diluent or carrier; and methods of treating neuropschiatric disorders comprising administering to a mammal (including man) in need of such treatment an effective amount of a compound of formula I, or a pharmaceutically acceptable salt thereof; ##STR1##
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: November 30, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Ying K. Yee, Cyrus J. Ohnmacht, Diane A. Trainor, Joseph J. Lewis
  • Patent number: 5258390
    Abstract: The invention provides the novel compound, 9-(3-cyanophenyl)-3,4,6,7,9,10-hexahydro-1,8-(2H,5H)-acridinedione and pharmaceutically acceptable acid addition salts thereof, pharmaceutical compositions containing the compound, and the use of the compound in the treatment of urinary incontinence.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: November 2, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventor: Cyrus J. Ohnmacht
  • Patent number: 5254558
    Abstract: The present invention relates to certain novel substituted heterocycles which are 1-pyrimidinylacetamide compounds of formula I, set out herein, which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes intermediates useful in the synthesis of these substituted heterocycles, processes for preparing the substituted heterocycles, pharmaceutical compositions containing such substituted heterocycles and methods for their use.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: October 19, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Peter R. Bernstein, Philip D. Edwards, Royston M. Thomas, Chris A. Veale, Peter Warner, Donald J. Wolanin
  • Patent number: 5248832
    Abstract: A process for the manufacture of trifluoroacetaldehyde, or a hydrate or hemiacetal thereof, which comprises reduction of an ester of trifluoroacetic acid with a borohydride reducing agent in a hydroxylic solvent to form trifluoroacetaldehyde hydrate or hemiacetal; whereafter if the free aldehyde is required, water or alcohol is removed from the hydrate or hemiacetal respectively using conventional procedures.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: September 28, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventor: Stanley A. Lee
  • Patent number: 5245035
    Abstract: The invention concerns novel boron compounds of the formula IV, in which Q, Y.sup.1, G.sup.1 and G.sup.2 have the various meanings defined herein, and their acid and base addition salts. The said compounds are useful in the manufacture of certain quinoline, pyridine and imidazole derivatives which have angiotensin II inhibitory activity. The invention also provides novel processes for the production of the quinoline, pyridine and imidazole derivatives.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Andrew P. Thomas, David M. G. Martin, Stanley A. Lee, Lyn Powell
  • Patent number: 5236936
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: August 17, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: David A. Roberts, Robert H. Bradbury, Martin P. Edwards, Arnold H. Ratcliffe
  • Patent number: 5236937
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, Rz, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: August 17, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert H. Bradbury, Martin P. Edwards, Arnold H. Ratcliffe
  • Patent number: 5234942
    Abstract: The invention provides a series of novel heterocyclic amides of the formula I in which the group A; CRa can be --CRb.dbd.CRa--, --CHRb--CHRa-- or --N.dbd.CRa--, the amidic group Re.L can be Rd.X.CO.NH, Re.X.CS.NH or Re.NH.CO attached to position 4, 5 or 6 of the benzenoid moiety, z is an acid group selected from the group consisting of carboxy, an acylsulphonamide residue of the formula CO.NH.SO.sub.n Rg and a tetrazolyl residue of the formula II and the radicals Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, n, X, G.sup.1,Q and G.sup.2 have the meanings defined in the following specification.The compounds of formula I are leukotriene antagonists.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: August 10, 1993
    Assignee: ICI Americas Inc.
    Inventors: Peter R. Bernstein, Frederick J. Brown, Ying K. Yee
  • Patent number: 5219874
    Abstract: The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2;Y is methyleneoxy, vinylene or ethylene;A.sup.1 is (1-6C)alkylene;R.sup.1 is a group of the formula R.sup.2.A.sup.2 --, in which:R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano;A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl;Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; andR.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: June 15, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Alan W. Faull, Keith Russell, Williams J. Watkins
  • Patent number: 5219863
    Abstract: The invention concerns pharmaceutically useful novel compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X, X.sup.1 and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: June 15, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: David A. Roberts, Robert J. Pearce, Robert H. Bradbury
  • Patent number: 5217976
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, Ra, Rb, A, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: June 8, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Arnold H. Ratcliffe, Robert J. Pearce, Keith H. Gibson, Robin Wood, Brian B. Masek
  • Patent number: 5198439
    Abstract: The invention concerns pharmaceutically useful novel compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: March 30, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: David A. Roberts, Arnold H. Ratcliffe, Robert H. Bradbury
  • Patent number: 5198434
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, n, m, X, Y and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them. The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: March 30, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert H. Bradbury, David A. Roberts