Patents Assigned to Beecham Group
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Patent number: 5756525Abstract: A method is provided for the treatment and/or prophylaxis of cardiovascular diseases or eating disorders in a human or non-human mammal, which comprises administering to a human or non-human mammal in need thereof, an effective, non-toxic amount of a compound of formula (I): ##STR1## or a tautomeric form thereof and/or a pharmaceutically acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, in which A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group; R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond; A.sup.2 represents a benzene ring having in total up to five substituents; and n represents an integer in the range of from 2 to 6.Type: GrantFiled: December 12, 1996Date of Patent: May 26, 1998Assignee: Beecham Group plcInventors: Richard Mark Hindley, Michael Antony Cawthorne
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Patent number: 5750684Abstract: The present invention provides a process for the substitution of an acylamino .beta.-lactam compound at the carbon atom carrying the acylamino group, which process comprises reacting the .beta.-lactam compound with an halogenating agent and a nucleophilic reagent; characterized in that the acylamino group has an acidic group on the carbon atom adjacent the carbonyl group.In particular the process of this invention comprises reacting a .beta.-lactam of partial structure (I): ##STR1## where X represents an acidic group; with an halogenating agent and a nucleophilic reagent.Type: GrantFiled: August 30, 1991Date of Patent: May 12, 1998Assignee: Beecham Group plc.Inventors: Herve Geerlandt, Claudine Grand' Henry
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Patent number: 5734051Abstract: A method for the treatment of cerebrovascular disorders and/or disorders associated with cerebral senility and/or other disorders which method comprises the administration of an effective, non-toxic amount of a compound of formula (I): ##STR1## or if appropriate a pharmaceutically acceptable salt thereof, wherein R.sup.1 and R.sup.2 each independently represent alkyl or a moiety of formula (a):--(CH.sub.2).sub.m --A (a)whereinm represents zero or an integer 1, 2 or 3;A represents a substituted or unsubstituted cyclic hydrocarbon radical; andR.sup.3 represents a halogen atom, a nitro group, or a group --NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 each independently represents hydrogen, alkyl or alkylcarbonyl or R.sup.4 and R.sup.5 together with the nitrogen to which they are attached forming an optionally substituted, heterocyclic group; certain novel compounds falling within formula (I) and compositions comprising such compounds.Type: GrantFiled: June 7, 1995Date of Patent: March 31, 1998Assignee: Beecham GroupInventors: Barbara Ann Spicer, Harry Smith, Harald Maschler
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Patent number: 5684153Abstract: The present invention provides a process for the synthesis of penciclovir and famciclovir by 9-substituting the compound 2-amino-6-chloropurine (ACP) with 2-acetoxymethyl-4-(leaving group)-but-1-yl acetate, followed by displacement of the 6-chloro moiety with a hydroxy moiety (i.e. to form a guanine derivative) or with hydrogen (to form the 2-aminopurine derivative), respectively.Type: GrantFiled: June 10, 1994Date of Patent: November 4, 1997Assignee: Beecham Group plcInventors: Graham Richard Geen, Richard Lewis Jarvest
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Patent number: 5679789Abstract: Potassium clavulanate exists in a novel crystalline habit, namely in the form of rosettes, having improved processing properties. The novel form may, for example, be obtained by crystallization or recrystallization using inverse precipitation, preferably at 8.degree.-15.degree. C.Type: GrantFiled: June 7, 1995Date of Patent: October 21, 1997Assignee: Beecham Group, p.l.c.Inventors: Dennis Edward Clark, Shaukat Hussain Malik, Paul Gerard Butterly, Clive Elton Badman, Jeffrey David Haseler
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Patent number: 5674869Abstract: Use of a guanine derivative or a prodrug thereof in the treatment of viral infections.Type: GrantFiled: June 6, 1995Date of Patent: October 7, 1997Assignee: Beecham Group plcInventors: Martin David John Kenig, Richard Anthony Vere Hodge
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Patent number: 5670170Abstract: A pharmaceutical formulation comprises a medicament and an effervescent couple, plus optionally other excipients. Preferred medicaments are antibiotics, together with a citric acid--sodium bicarbonate couple. The formulation is provided for make up with water into an antibiotic suspension.Type: GrantFiled: May 18, 1995Date of Patent: September 23, 1997Assignee: Beecham Group p.l.c.Inventors: Francis Walter Grimmett, Nigel Philip Davidson
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Patent number: 5646169Abstract: A method is provided for the treatment and/or prophylaxis of eating disorders in a human or non-human mammal, which comprises administering to a human or non-human mammal in need thereof, an effective, non-toxic amount of a compound of formula (I): ##STR1## or a tautomeric form thereof and/or a pharmaceutically acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, in which A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group; R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond; A.sup.2 represents a benzene ring having in total up to five substituents; and n represents an integer in the range of from 2 to 6.Type: GrantFiled: June 1, 1995Date of Patent: July 8, 1997Assignee: Beecham Group p.l.c.Inventors: Richard Mark Hindley, Michael Antony Cawthorne
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Patent number: 5594026Abstract: Two further crystalline polymorphic forms of the anti-infective agent mupirocin have been identified. Processes for the preparation thereof and the use thereof are described.Type: GrantFiled: April 18, 1995Date of Patent: January 14, 1997Assignee: SmithKline Beecham Group p.l.c.Inventors: Michael J. Greenway, Sarah D. Salt, Christopher E. Valder, Alan D. Curzons
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Patent number: 5569672Abstract: Crystalline calcium pseudomonate or a hydrate thereof, in particular the dihydrate.Processes for the preparation of these salts and their use in human and veterinary medicine and as a growth promoter in animals are described.Type: GrantFiled: May 9, 1995Date of Patent: October 29, 1996Assignee: Beecham Group p.l.c.Inventors: Geoffrey H. Baker, Merle Beal
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Patent number: 5554610Abstract: A method for the treatment and/or prophylaxis of disorders associated with pulmonary hypertension and/or disorders associated with right heart failure, in mammals, such as humans, which method comprises administering to the mammal in need of such treatment and/or prophylaxis an effective and/or prophylactic amount of a vasodilator selected from the group consisting of ganglion blockers, sympathetic nerve blockers, and direct vasodilators; or a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate thereof.Type: GrantFiled: August 24, 1994Date of Patent: September 10, 1996Assignee: Beecham Group p.l.c.Inventors: Andrew J. Williams, Derek R. Buckle
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Patent number: 5541194Abstract: Novel compounds of formula (I), processes for their preparation, and their use as pharmaceutical agents are described: ##STR1## in which p represents an integer of 2 to 4; r represents an integer of 1 or 2; s represents 0 or 1; and X represents a group ##STR2## in which A.sub.1 is oxygen or sulphur, one of A.sub.2 and A.sub.3 is CR.sub.1 and the other is nitrogen or CR.sub.2, or A.sub.2 is oxygen or sulphur, A.sub.1 is CH and A.sub.3 is CR.sub.1, where R.sub.1 and R.sub.2 are independently selected from hydrogen and C.sub.1-2 alkyl, with the proviso that when r is 2, R.sub.1 and R.sub.2 are hydrogen or methyl. The novel compounds of this invention may be used to treat or to prevent dementia in mammals.Type: GrantFiled: January 6, 1995Date of Patent: July 30, 1996Assignee: Beecham Group p.l.c.Inventors: Barry S. Orlek, Paul A. Wyman, Harry J. Wadsworth
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Patent number: 5521201Abstract: A method is provided for the treatment and/or prophylaxis of cardiovascular diseases in a human or non-human mammal, which comprises administering to a human or non-human mammal in need thereof, an effective, non-toxic amount of a compound of formula (I): ##STR1## or a tautomeric form thereof and/or a pharmaceuticlaly acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, in which A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group; R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond; A.sup.2 represents a benzene ring having in total up to five substituents; and n represents an integer in the range of from 2 to 6.Type: GrantFiled: June 1, 1995Date of Patent: May 28, 1996Assignee: Beecham Group p.l.c.Inventors: Richard M. Hindley, Michael A. Cawthorne
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Patent number: 5478851Abstract: It has now been discovered that certain novel amide substituted thiazolidinedione derivatives show improved blood-glucose lowering activity and are therefore of potential use in the treatment and/or prophylaxis of hyperglycaemia and are of particular use in the treatment of Type II diabetes.Type: GrantFiled: April 30, 1993Date of Patent: December 26, 1995Assignee: Beecham Group plcInventors: Barrie C. C. Cantello, David Haigh, Richard M. Hindley
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Patent number: 5478850Type: GrantFiled: April 30, 1993Date of Patent: December 26, 1995Assignee: Beecham Group plcInventors: Richard M. Hindley, David Haigh, Graham P. Cottam
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Patent number: 5470859Abstract: A pharmaceutical composition useful to treating dementia which comprises a compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## in which p is 1 and either m is 0 and n is 2 or 3 or m is 1 and n is 2, or p is 2, m is 0 and n is 2, and Z is a heterocyclic group ##STR2## in which Q represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises one or two heteroatoms selected from oxygen, nitrogen and sulphur, or three nitrogen atoms, any amino nitrogen being substituted by a C.sub.1-2 alkyl, cyclopropyl or propargyl group, and any ring carbon atom being optionally substituted by a group R.sub.1 ; or a group ##STR3## which A.sub.1, A.sub.2 and A.sub.3 complete a 5-membered aromatic ring and A.sub.1 is oxygen or sulphur, one of A.sub.2 and A.sub.3 is CR.sub.2 and the other is nitrogen or CR.sub.3, or A.sub.2 is oxygen or sulphur, one of A.sub.1 and A.sub.3 is CR.sub.2 and the other is CR.sub.3 ; and R.sub.1, R.sub.2 and R.sub.Type: GrantFiled: August 2, 1990Date of Patent: November 28, 1995Assignee: Beecham Group p.l.c.Inventors: Harry J. Wadsworth, Paul A. Wyman, Steven Dabbs, Sarah M. Jenkins
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Patent number: 5470872Abstract: Novel CompoundsA compound of formula (I): ##STR1## where the substituents are defined later in the specification. The compounds are useful as muscle relaxants and as such have a number of pharmaceutical uses.Type: GrantFiled: December 14, 1993Date of Patent: November 28, 1995Assignee: Beecham Group plcInventors: Derek R. Buckle, Ivan L. Pinto, David G. Smith
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Patent number: 5449509Abstract: An oral hygiene composition for use in the treatment of dentine hypersensitivity comprises a water soluble strontium salt and a water soluble potassium salt, together with a dentally acceptable excipient. Preferably, the composition is in the form of a dentifrice comprising an abrasive silica and a thickening silica, and optionally includes an ionic fluorine-containing compound.Type: GrantFiled: March 19, 1993Date of Patent: September 12, 1995Assignee: Beecham Group p.l.c.Inventors: Robert J. Jackson, Susan A. Duke, Mark A. Wicks
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Patent number: 5436266Abstract: Crystalline calcium pseudomonate or a hydrate thereof, in particular the dihydrate. Processes for the preparation of these salts and their use in human and veterinary medicine and as a growth promoter in animals are described.Type: GrantFiled: February 28, 1994Date of Patent: July 25, 1995Assignee: Beecham Group p.l.c.Inventors: Geoffrey H. Baker, Merle Beal
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Patent number: RE35593Abstract: A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein R.sup.1 represents ##STR2## in which each of p and q independently represents an integer of 2 to 4, r represents an integer of 2 to 4, s represents 1 or 2 and t represents 0 or 1;R.sub.2 is a group OR.sub.4, where R.sub.4 is C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, a group OCOR.sub.5 where R.sub.5 is hydrogen or R.sub.4, or a group NHR.sub.6 or NR.sub.7 R.sub.8 where R.sub.6, R.sub.7 and R.sub.8 are independently C.sub.1-2 alkyl; andR.sub.3 is chloro, fluoro, bromo, cyclopropyl, C.sub.1-3 alkyl substituted by one, two or three halogen atoms, or R.sub.3 is a group (CH.sub.2).sub.n R.sub.9 where R.sub.9 is --CN, --OH, --OCH.sub.3, --SH, --SCH.sub.3, --C.tbd.CH or --CH.dbd.CH.sub.2 and n is O or 1, with the proviso that when n is 0, R.sub.9 is not --OH or --SH.Type: GrantFiled: January 11, 1996Date of Patent: August 19, 1997Assignee: Beecham Group p.l.c.Inventors: Barry S. Orlek, Steven M. Bromidge, Steven Dabbs