Patents by Inventor Ian A. Cliffe
Ian A. Cliffe 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).
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Patent number: 5204470Abstract: Azabicyclic compounds of formula ##STR1## and their pharmaceutically acceptable acid addition salts are disclosed. In the formula, ##STR2## is an optionally substituted heteroaryl group containing at least one hetero atom X; n is 2, 3 or 4; m is 1 or 2; R.sup.1 is hydrogen, C.sub.1-6 alkyl, C.sub.3-5 -alkenyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl-C.sub.1-2 alkyl or aryl- or heteroaryl-C.sub.1-2 -alkyl; and the --(CH.sub.2).sub.m ##STR3## moiety is ortho to the hetero atom X. The compounds exhibit activity as 5-HT.sub.3 -antagonists and can be used, inter alia, for the treatment of neuropsychiatric disorders.Type: GrantFiled: September 9, 1991Date of Patent: April 20, 1993Assignee: John Wyeth & Brother, LimitedInventor: Ian A. Cliffe
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Patent number: 5194439Abstract: Pyridine derivatives of formula ##STR1## their heteroaromatic N-oxides and their pharmaceutically acceptable acid addition salts are disclosed. In the formula z is 0, 1 and 2; R is hydrogen, hydroxy, lower alkyl, lower alkoxy, halogen, trifluoromethyl, nitro, amino, (lower)alkylamino or di(lower)alkylamino; R.sup.1 is hydrogen or lower alkyl; R.sup.2 is --(CH.sub.2).sub.n --R.sup.3 or --CH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.m --R.sup.3 or --CH.sub.2.C.tbd.C.(CH.sub.2).sub.m --R.sup.3 where n is 1 to 6, and m is 0 to 3; and R.sup.3 is a ring of formula ##STR2## The compounds exhibit activity as 5-HT.sub.1A agonists, antagonists or partial agonists and are used for the treatment of CNS disorders, e.g. anxiety, as antihypertensives and in treating anorexia.Type: GrantFiled: September 25, 1991Date of Patent: March 16, 1993Assignee: John Wyeth & Brother LimitedInventors: Ian A. Cliffe, Howard L. Mansell, Richard S. Todd, Alan C. White
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Patent number: 5169845Abstract: Piperazine derivative of formula ##STR1## and the pharmaceutically acceptable acid addition salts, where A is an alkylene chain of 1 or 2 carbon atoms optionally substituted by one or more lower alkyl groups, m is 0, 1 or 2, R is hydrogen or lower alkyl, R.sup.1 is aryl or a mono- or bicyclic heteroaryl radical, R.sup.2 is hydrogen or lower alkyl, R.sup.3 is a heteroaryl radical, R.sup.4 is hydrogen, lower alkyl or aryl, and R.sup.5 is hydrogen, lower alkyl, cycloalkyl, cycloalkyl(lower)alkyl, aryl, or aryl(lower)alkyl or R.sup.4 and R.sup.5 together with the nitrogen atom to which they are both attached represent a saturated heterocyclic ring which may contain a further hetero atom are 5--HT.sub.1A -binding agents and may be used, for example, as anxiolytics.Type: GrantFiled: September 30, 1991Date of Patent: December 8, 1992Assignee: John Wyeth & Brother LimitedInventors: Ian A. Cliffe, Graham J. Warrellow
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Patent number: 5164385Abstract: Azetidine derivatives of formula ##STR1## and their pharmaceutically acceptable acid addition salts are disclosed. In the formula R is hydrogen or one or more specified substituents. The compounds have hypotensive activity. Some are also 5-HT.sub.1A agonists.Type: GrantFiled: September 9, 1991Date of Patent: November 17, 1992Assignee: John Wyeth & Brother, Ltd.Inventors: Ian A. Cliffe, Alan C. White
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Patent number: 5082843Abstract: Novel ethers of formula ##STR1## their heteroaromatic N-oxides, and the pharmaceutically acceptable acid additions of the compounds of formula (I) and their N-oxides possess 5-HT.sub.3 -antagonistic activity. In the formula ##STR2## represents an optionally substituted heteroaryl group containing a hetero atom X and -B represents a saturated azabicyclic ring such as quinuclidyl or tropanyl.Type: GrantFiled: October 30, 1990Date of Patent: January 21, 1992Assignee: John Wyeth and Brother LimitedInventor: Ian A. Cliffe
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Patent number: 5075303Abstract: Pyridine derivatives of formula ##STR1## their heteroaromatic N-oxides and their pharmaceutically acceptable acid addition salts are disclosed. In the formula z is 0, 1 and 2 and R, R.sup.1, R.sup.2 and R.sup.2 have specified meanings. The compounds exhibit activity as 5-HT.sub.1A agonists, antagonists or partial agonists and are useful for the treatment of CNS disorders e.g. anxiety, as antihypertensives and in treating anorexia.Type: GrantFiled: April 6, 1990Date of Patent: December 24, 1991Assignee: John Wyeth & Brother LimitedInventors: Ian A. Cliffe, Howard L. Mansell, Richard S. Todd, Alan C. White
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Patent number: 4997839Abstract: Novel ethers of formula ##STR1## their heteroaromatic N-oxides, and the pharmaceutically acceptable acid additions of the compounds of formula (I) and their N-oxides possess 5-HT.sub.3 -antagonistic activity. In the formula ##STR2## represents an optionally substituted heteroaryl group containing a hetero atom X and -B represents a saturated azabicyclic ring such as quinuclidyl or tropanyl.Type: GrantFiled: March 22, 1990Date of Patent: March 5, 1991Assignee: John Wyeth & Brother LimitedInventor: Ian A. Cliffe
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Patent number: 4988814Abstract: Compounds of the formula: ##STR1## in which R.sup.1 is alkyl; R.sup.2 and R.sup.3 are alkyl or taken together they are polymethylene, R.sup.2 and R.sup.3 complete a 5-norbornen-2-yl moiety; X is --CO.sub.2 --, --OCO--, --OCO.sub.2 --, --N(R.sup.7)CO--, --NHNHCO--, --ON(R.sup.7)CO--, --CON(R.sup.7)--, --N(R.sup.7)CO.sub.2 --, --OCON(R.sup.7)-- or --N(R.sup.7)CON(R.sup.8)--, wherein R.sup.7 and R.sup.8 are, independently, hydrogen, alkyl, phenyl, benzyl, substituted phenyl or substituted benzyl in which the substituents are halo, alkyl alkoxy, cyano, nitro or perhalomethyl; R.sup.4 is hydrogen or alkyl; R.sup.5 is hydrogen, alkyl, hydroxyalkyl, phenyl, benzyl, substituted phenyl or substituted benzyl in which the substituents are hydroxy, halo, alkyl alkoxy, trifluoromethyl, nitro, cyano, carbalkoxy, carboxamido, amino, alkylamino or dialkylamino; R.sup.Type: GrantFiled: October 27, 1989Date of Patent: January 29, 1991Assignees: American Home Products Corp., John Wyeth & Bro.Inventors: Magid A. Abou-Gharbia, John P. Yardley, Ian A. Cliffe
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Patent number: 4929625Abstract: Novel ethers of formula ##STR1## their heteroaromatic N-oxides, and the pharmaceutically acceptable acid additions of the compounds of formula (I) and their N-oxides possess 5-HT.sub.3 -antagonistic activity. In the formula ##STR2## represents an optionally substituted heteroaryl group containing a hetero atom X and --B represents a saturated azabicyclic ring such as quinuclidyl or tropanyl.Type: GrantFiled: August 1, 1988Date of Patent: May 29, 1990Assignee: John Wyeth and Brothers LimitedInventor: Ian A. Cliffe
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Patent number: 4921860Abstract: Pyridyl ethers of formula ##STR1## [where R is hydrogen, or 1 to 4 hydroxy, alkyl, alkoxy, amino, alkylamino, dialkylamino, halogen, trifluoromethyl, phenyl, halophenyl, alkyphenyl, alkoxyphenyl, carboxy, carboxamide, nitro, thiol or alkylthio substituents and B is quinuclidyl or tyopanyl] are useful for the treatment of conditions which respond to antagonism of 5 - HT.sub.3 receptors e.g. the treatment of migraine, emesis, anxiety, gastro-intestinal disorders and psychotic disorders.Type: GrantFiled: August 1, 1988Date of Patent: May 1, 1990Assignee: John Wyeth and Brother, LimitedInventor: Ian A. Cliffe
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Patent number: 4921958Abstract: The compounds of the formula: ##STR1## wherein Ad is 1-adamantyl, 2-adamantyl or 3-noradamantyl; n is 1,2,3,4 or 5; R.sup.1 hydrogen, alkyl, phenyl, benzyl, or substituted phenyl or benzyl in which the substituent is alkyl, alkoxy, halo, cyano, nitro or trifluoromethyl; R.sup.2 is phenyl, benzyl or substituted phenyl or benzyl in which the substituent is alkyl, alkoxy, halo, nitro, cyano or perhalomethyl, 2-, 3-, or 4-pyridinyl, 2-, 4- or 5-pyrimidinyl or 2- or 3-pyrazinyl; R.sup.3 and R.sup.4 are, independently, hydrogen, methyl, phenyl or benzyl; or a pharmaceutically acceptable salt thereof, are useful anxiolytic/antidepressant agents, with elements of antipsychotic activity.Type: GrantFiled: September 27, 1989Date of Patent: May 1, 1990Assignees: American Home Products Corporation, John Wyeth & Brother LimitedInventors: Magid A. Abou-Gharbia, John P. Yardley, Wayne E. Childers, Jr., Ian A. Cliffe
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Patent number: 4803207Abstract: Pyrimidoindoles of formula (I) ##STR1## and their pharmaceutically acceptable acid addition salts, wherein R represents lower alkyl a mono- or bicyclic aryl radical or a group of mormula R.sup.3 O--B--[where R.sup.3 O is (lower)alkoxy,aryl(lower)alkoxy or hydroxy and B is a lower alkylene chain optionally containing one double or triple bond], R.sup.1 and R.sup.2 which may be the same or different each represent hydrogen, hydroxyl, lower alkyl, lower alkoxy, halo(lower)alkyl, halogen, amino or mono- or di(lower) alkylamino and A, together with the carbon atom to which it is attached, represents 5, 6 or 7 membered saturated carbocyclic or heterocyclic ring, are useful as hypoglyceamics.Type: GrantFiled: March 9, 1987Date of Patent: February 7, 1989Assignee: John Wyeth & Brother Ltd.Inventors: Alan C. White, Ian A. Cliffe, Richard S. Todd
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Patent number: 4784996Abstract: Compounds of formula ##STR1## wherein A represents a lower alkylene chain optionally containing one double or triple bond, RO represents (lower)alkoxy, aryl(lower)alkoxy, hydroxy or protected hydroxy, R.sup.1 and R.sup.2 which may be the same or different each represent hydrogen, hydroxyl, lower alkyl, lower alkoxy, halo(lower)alkyl, halogen, amino or mono- or di(lower)alkylamino and R.sup.3 and R.sup.4 each independently represent hydrogen or lower alkyl and their pharmaceutically acceptable acid addition salts are useful as hypoglycaemics or as intermediates for hypoglycaemics.Type: GrantFiled: March 9, 1987Date of Patent: November 15, 1988Assignee: John Wyeth & Brother Ltd.Inventors: Alan C. White, Ian A. Cliffe, Richard S. Todd
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Patent number: 4783455Abstract: Compounds of formula (I) ##STR1## and their pharmaceutically acceptable acid addition salts, wherein R represents lower alkyl or a mono- or bicyclic aryl or heteroaryl radical, R.sup.1 and R.sup.2 which may be the same or different each represent hydrogen, hydroxyl, lower alkyl, lower alkoxy, halo(lower)alkyl, halogen, amino or mono- or di(lower)alkylamino, X represents--CH.sub.2 CR.sup.3 R.sup.4 CH.sub.2 --or --(CH.sub.2).sub.4 --where R.sup.3 and R.sup.4 each independently represent hydrogen or lower alkyl or R.sup.3 and R.sup.4 together with the carbon atom to which they are attached represent a 5, 6 or 7 membered carbocyclic ring and R.sup.5 represents acyl and R.sup.6 represents hydrogen or R.sup.5 and R.sup.6 each independently represent hydrogen or lower alkyl, are useful as hypoglycaemics.Type: GrantFiled: May 22, 1987Date of Patent: November 8, 1988Assignee: John Wyeth and Brother Ltd.Inventor: Ian A. Cliffe
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Patent number: 4760158Abstract: Novel 3-halo-2,2-disubstituted propanenitriles of formula ##STR1## wherein Z represents bromo or chloro and A, together with the carbon atom to which it is attached, represents a 5,6 or 7 membered saturated carbocyclic or heterocyclic ring, are useful as intermediates for preparing substituted pyrimido[1,2-a]indoles. The intermediates can be prepared by a novel process which comprises condensing a 2,2-disubstituted ethanenitrile with a dihalomethane in the presence of a non-nucleophilic strong base.Type: GrantFiled: March 9, 1987Date of Patent: July 26, 1988Assignee: John Wyeth & Brother LimitedInventors: Ian A. Cliffe, Richard S. Todd
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Patent number: 4728658Abstract: Pyridine derivatives having the formula I ##STR1## and their pharmaceutically acceptable salts (where n is 0 or 1; R.sub.1 is hydrogen or lower alkyl and R.sub.2 is an aromatic group) exhibit anti-secretory activity and may be used as anti-secretory agents and/or as anti-ulcer agents.Type: GrantFiled: September 3, 1985Date of Patent: March 1, 1988Assignee: John Wyeth & Brother LimitedInventors: Roger Crossley, Ian A. Cliffe
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Patent number: 4141446Abstract: A device for mounting a cassette box for storage and/or display purposes comprises a planar base part and a flap hingedly connected to the base part and extending within the periphery of the base part, the flap having at least one opening therein for engagement with a locating stud of the cassette box, the flap being dimensioned to be received and trapped in a cassette box with the opening therein engaged with the locating stud to mount the cassette box in the device.Type: GrantFiled: June 22, 1977Date of Patent: February 27, 1979Assignee: Garrod and Lofthouse LimitedInventor: Ian Cliffe