Patents by Inventor Philip N. Edwards

Philip N. Edwards 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).

  • Patent number: 5196422
    Abstract: The invention concerns a thiazole of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted aryl of up to 10 carbon atoms;A is a direct link to X, or is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;X is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl;R.sup.2 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, substituted (1-4C)alkyl or (2-6C)alkanoyl;Q is optionally substituted thiazolyl;or a pharmaceutically-acceptable salt thereof.The invention also concerns processes for the manufacture of a thiazole of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said thiazole.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: March 23, 1993
    Assignees: ICI Pharma, Imperial Chemical Industries plc
    Inventors: Thomas G. Colerick Bird, Graham C. Crawley, Martin P. Edwards, Philip N. Edwards, Jean-Marc M. M. Girodeau, John F. Kingston
  • Patent number: 5137913
    Abstract: The invention concerns a diaryl ether cyclic ether of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;X.sup.1 is oxy, thio, sulphinyl or sulphonyl;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 and R.sup.2 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- wherein each of A.sup.2 and A.sup.3 is (1-4C) alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino; andR.sup.3 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl and substituted (1-4C)alkyl.The invention also concerns processes for the manufacture of a diaryl ether cyclic ether of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said cyclic ether. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: August 11, 1992
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Thomas G. C. Bird, Philip N. Edwards
  • Patent number: 5134148
    Abstract: The invention concerns a heterocycle of the formula I ##STR1## wherein Q is an optionally substituted 6-membered monocyclic or 10-membered bicyclic heterocyclic moiety containing one or two nitrogen atoms;A is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;X is oxy, thio, sulphinyl, sulphonyl or imino;Ar is phenylene which may optionally bear one or two substituents or Ar is an optionally substituted 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl;and R.sup.2 and R.sup.3 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- which, together with the carbon atom to which A.sup.2 and A.sup.3 are attached, defines a ring having 4 to 7 ring atoms, wherein A.sup.2 and A.sup.3, which may be the same or different, each is (1-4C)alkylene and X.sup.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: July 28, 1992
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Graham C. Crawley, Philip N. Edwards, Jean-Marc M. M. Girodeau
  • Patent number: 5098930
    Abstract: The invention concerns a heterocyclic derivative of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;A.sup.1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo-(3-6C)alkylene;Ar.sup.2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; andR.sup.2 and R.sup.3 together form a group of the formula -A.sup.2 -X-A.sup.3 - wherein each of A.sup.2 and A.sup.3 is (1-4C)alkylene and X is oxy, thio, sulphinyl, sulphonyl or imino;or a pharmaceutically-acceptable salt thereof.The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: March 24, 1992
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Philip N. Edwards, Jean-Marc M. M. Girodeau
  • Patent number: 5089513
    Abstract: The invention concerns a thiazole of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted aryl of up to 10 carbon atoms;A is a direct link to X, or is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;X is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl;R.sup.2 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, substituted (1-4C)alkyl or (2-6C)alkanoyl;Q is optionally substituted thiazolyl;or a pharmaceutically-acceptable salt thereof.The invention also concerns processes for the manufacture of a thiazole of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said thiazole.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: February 18, 1992
    Assignees: ICI Pharma, Imperial Chemical Industries PLC
    Inventors: Thomas G. C. Bird, Graham C. Crawley, Martin P. Edwards, Philip N. Edwards, Jean-Marc M. M. Girodeau, John F. Kingston
  • Patent number: 5021414
    Abstract: A phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus;wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages,wherein R.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --,wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene;wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro;or a salt thereof when appropriate.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: June 4, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: William R. Pilgrim, Derek W. Young, Brian S. Tait, Graham C. Crawley, Philip N. Edwards, George B. Hill
  • Patent number: 4935437
    Abstract: A (substituted-aralkyl)heterocyclic compound of the formula I ##STR1## wherein R.sup.1 is an azido, carbamoyl, cyano, formyl, hydroxy or nitro radical, a 1-6C 1-hydroxyalkyl, alkoxy, alkylcarbamoyl, alkylthio, alkylsulphinyl or alkylsulphonyl radical, a 2-cyanoethyl radical, optionally bearing one to four 1-6C alkyl substituents, or a 2-6C alkanoyl, halogenoalkanoyl, alkanoyloxy, alkanoylamino, dialkylcarbamoyl or alkoxycarbonyl radical; R.sup.2 and R.sup.3, which may be the same or different, are each a hydrogen atom, a 1-6C alkyl, dueterioalkyl or halogenoalkyl radical, or a phenyl or phenyl(1-6C alkyl) radical, in each of which the phenyl may optionally bear one or more substituents; or R.sup.2 and R.sup.3, together with the carbon atom to which they are attached, may form a 3- to 6-membered ring; or R.sup.1 R.sup.2 R.sup.3 C- is a 1,1-dicyanoethyl or trifluoromethylsulphonyl radical; R.sup.4 is a hydrogen or halogen atom, a cyano or nitro radical or a 1-6C alkyl or halogenoalkyl radical; R.sup.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 19, 1990
    Assignee: Imperial Chemical Industries plc
    Inventors: Philip N. Edwards, Michael S. Large
  • Patent number: 4916148
    Abstract: Naphtho[2,1-b]furan derivatives of the formula: ##STR1## wherein R.sup.1 is a 1H-1,2,4-triazol-1-yl, 4H-1,2,4-triazol-4-yl, 3-pyridyl or 5-pyrimidinyl radical or a 1H-imidazol-1-yl radical optionally substituted in the 5-position by a 1-6C alkyl or halogenoalkyl radical;R.sup.2 and R.sup.3, which may be the same or different, are each a hydrogen or deuterium atom, a cyano radical, a 1-6C alkyl or halogenoalkyl radical, a phenyl radical optionally substituted by halogen, or one of R.sup.2 and R.sup.3 is a radical of the formula R.sup.1 as defined above, and the other is hydrogen;R.sup.4 and R.sup.5, which may be the same or different, are each a 1-2C alkyl, deuterioalkyl or halogenoalkyl radical;or R.sup.4 and R.sup.5 together with the carbon atom to which they are attached form a 3-6C cycloalkyl radical;R.sup.6 and R.sup.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: April 10, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Philip N. Edwards, Michael S. Large
  • Patent number: 4904661
    Abstract: A phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus;wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages,wherein R.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --, wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene;wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro;or a salt thereof when appropriate.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: February 27, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: William R. Pilgrim, Derek W. Young, Brian S. Tait, Graham C. Crawley, Philip N. Edwards, George B. Hill
  • Patent number: 4833135
    Abstract: A phenol derivative of the formulaNU-A-X-R.sup.1wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxy-indanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or cycloalkylene which is interrupted by a heterocyclene linkage, wherein R.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --, wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene; wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro; or a salt thereof when appropriate.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: May 23, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: Philip N. Edwards, Neil J. Hales, Derek W. Young
  • Patent number: 4762932
    Abstract: Compounds useful for inhibiting gastric acid secretion and for the treatment of peptic ulcers caused or exacerbated by gastric acidity having the following formula (I): ##STR1## in which R.sup.1 and R.sup.2, are H, C.sub.1-10 alkyl, C.sub.3-8 cycloalkyl or cycloalkylalkyl in which the alkyl part is C.sub.1-6 and the cycloalkyl part is C.sub.3-8, each of the alkyl, cycloalkyl and cycloalkylalkyls being optionally substituted by one or more halogens selected from F, Cl and Br, provided that at least one of R.sup.1 and R.sup.2 is a halogen substituted alkyl, cycloalkyl or cycloalkylalkyl and provided that there is no halogen substituent on the carbon directly attached to the nitrogen; and X, m, Y, n and R.sup.3 are as described in the specification; and the pharmaceutically-acceptable acid-addition salts thereof.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: August 9, 1988
    Assignees: Imperial Chemical Industries, Ltd., ICI Americas, Inc.
    Inventors: Tobias O. Yellin, Philip N. Edwards, Michael S. Large
  • Patent number: 4760061
    Abstract: Mono- or bis-complex esters or ethers of a phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined mono- or bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; whereinA is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages, whereinR.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --, whereinR.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene; whereinR.sup.12 is hydrogen or alkyl, and whereinR.sup.22 is hydrogen, cyano or nitro; or a salt thereof when appropriate.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: July 26, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Philip N. Edwards, Brian S. Tait
  • Patent number: 4751240
    Abstract: A phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined phenolic nucleus including a phenyl-hydroxynaphthyl; hydroxyphenyl-naphthyl; phenyl-hydroxyindanyl, phenyl-hydroxybenzothienyl or mono-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages, wherein R.sup.1 is hydrogen, or alkyl, alkenyl, alkynyl, cycloalkyl, halogenoalkyl, alkoxyalkyl, halogenoalkoxyalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 --or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --(PO)R.sup.2 13 , --S--, --SO--or --SO.sub.2 --, wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene; wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro; or a salt thereof when appropriate.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: June 14, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Jean Bowler, Graham C. Crawley, Philip N. Edwards, Alasdair T. Glen, Michael S. Large, Brian S. Tait
  • Patent number: 4746672
    Abstract: Sulphur derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion of the formula I: ##STR1## in which R.sup.1 and R.sup.2 independently are hydrogen or 1-10C alkyl, 3-8C cycloalkyl or 4-14C cycloalkylalkyl, each alkyl, cycloalkyl or cycloalkylalkyl optionally carrying one or more F, Cl or Br atoms, provided that one of R.sup.1 and R.sup.2 is halogen substituted; ring X is a heterocyclic ring as defined in the specification; A is phenylene or 5-7C cycloalkylene or a 1-8C alkylene chain into which is optionally inserted one or two groups; p is 1 or 2; R.sup.3 is a variety of radicals described in the specification; and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing processes for the derivatives, intermediates and pharmaceutical compositions are also part of the invention.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: May 24, 1988
    Assignee: ICI Americas Inc.
    Inventors: Tobias O. Yellin, Philip N. Edwards, Michael S. Large
  • Patent number: 4732912
    Abstract: A phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages,wherein R.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --,wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene;wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro;or a salt thereof when appropriate.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: March 22, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: William R. Pilgrim, Derek W. Young, Brian S. Tait, Graham C. Crawley, Philip N. Edwards, George B. Hill
  • Patent number: 4670592
    Abstract: A bisbiguanide compound of the formula:R.sup.1 R.sup.2 N.C(:NR.sup.6)NH.C(:NH)NH.CH.sub.2 X-- --(CH.sub.2).sub.3 NH.C(:NH)NH.C(:NR.sup.7)NR.sup.3 R.sup.4 Vor a tautomer thereof, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 which may be the same or different, are each hydrogen, a 1-16C alkyl radical, a 2-16C alkoxyalkyl radical, a 3-12C cycloalkyl radical, a (3-12C cycloalkyl)-(1-4C alkyl) radical, or an optionally substituted phenyl or phenyl(1-4C alkyl) radical, or R.sup.1 and R.sup.2 and the nitrogen atom to which they are attached, or R.sup.3 and R.sup.4 and the nitrogen atom to which they are attached, which may be the same or different, are each a 1-azetidinyl, 1-pyrrolidinyl, piperidino, hexamethyleneimino, heptamethyleneimino, morpholino or 4-(1-8C alkanoyl)-1-piperazinyl radical each of which may bear 1-3C alkyl substituents; each of R.sup.6 and R.sup.7, which may be the same or different, is hydrogen or a 1-8C alkyl radical; and X is a substituted ethylene or ethylidene radical of the formula:--CH.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: June 2, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventors: Murdoch A. Eakin, Philip N. Edwards, Michael S. Large
  • Patent number: 4657908
    Abstract: The invention relates to carbonyl derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion. According to the invention where is provided a guanidine derivative of the formula I: ##STR1## in which R.sup.1 and R.sup.2, same or different, are hydrogen or 1-10C alkyl, 3-8C cycloalkyl or 4-14C cycloalkylalkyl, each alkyl, cycloalkyl or cycloalkylalkyl optionally carrying one or more F, Cl or Br atoms, provided that one of R.sup.1 and R.sup.2 is halogen substituted, or R.sup.2 is hydrogen and R.sup.1 is R.sup.5 -E-W in which W is 2-6C alkylene optionally substituted by 1 or 2 1-4C alkyls, E is O, S, SO, SO.sub.2 or NR.sup.6 in which R.sup.6 is H or 1-6C alkyl, R.sup.5 is H or 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls, or R.sup.5 and R.sup.6 are joined to form a pyrrolidine, piperidine, morpholine, piperazine or N-methylpiperazine ring, or R.sup.2 is H and R.sup.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: April 14, 1987
    Assignees: ICI Americas, Inc., Imperial Chemical Industries PLC
    Inventors: Tobias O. Yellin, David J. Gilman, Philip N. Edwards, Michael S. Large, Derrick F. Jones, Keith Oldham
  • Patent number: 4604465
    Abstract: Compounds useful for inhibiting gastric acid secretion and for the treatment of peptic ulcers caused or exacerbated by gastric acidity having the following formula (I): ##STR1## in which R.sup.1 and R.sup.2, are H, C.sub.1-10 alkyl, C.sub.3-8 cycloalkyl or cycloalkylalkyl in which the alkyl part is C.sub.1-6 and the cycloalkyl part is C.sub.3-8, each of the alkyl, cycloalkyl and cycloalkylalkyls being optionally substituted by one or more halogens selected from F, Cl and Br, provided that at least one of R.sup.1 and R.sup.2 is a halogen substituted alkyl, cycloalkyl or cycloalkylalkyl and provided that there is no halogen substituent on the carbon directly attached to the nitrogen; and X, m, Y, n and R.sup.3 are as described in the specification; and the pharmaceutically-acceptable acid-addition salts thereof.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: August 5, 1986
    Assignees: ICI Americas, Inc., Imperial Chemical Industries, Limited
    Inventors: Tobias O. Yellin, Philip N. Edwards, Michael S. Large
  • Patent number: 4574123
    Abstract: A 4,4'-alkylenebis[piperidine-1-(N-amidinoamidine)] derivative of the formula: ##STR1## or a tautomeric form thereof, wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, is hydrogen or an alkyl, alkenyl or alkoxyalkyl radical of up to 20 carbon atoms; or R.sup.1, R.sup.2 and the nitrogen atom to which they are attached, or R.sup.3 and R.sup.4 and the nitrogen atom to which they are attached, which may be the same or different, are each a 1-azetidinyl, 1-pyrrolidinyl, piperidino, hexamethyleneimino, heptamethyleneimino, morpholino or 4-(1-8C alkanoyl)-1-piperazinyl radical each of which may bear 1-3C alkyl substituents; a 3-20C cycloalkyl radical; or an optionally substituted phenyl or phenylalkyl radical; provided that at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is other than hydrogen; X is a direct bond or a 1-6C straight- or branched-chain alkylene radical which is linked to the 3- or 4-positions of the piperidine rings; and R.sup.5 and R.sup.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: March 4, 1986
    Assignee: Imperial Chemical Industries PLC
    Inventors: Philip N. Edwards, Michael S. Large
  • Patent number: 4567174
    Abstract: A bis(1-substituted biguanide) derivative of the formula:R.sup.3 R.sup.4 N.C(:NR.sup.5)NH.C(NR.sup.9)NR.sup.1 --X--NR.sup.2.C(:NR.sup.9)NH.C(:NR.sup.6)--NR.sup.7 R.sup.8 Vor a tautomeric form thereof, wherein R.sup.1, R.sup.2 and R.sup.9, which may be the same or different, are each hydrogen, a 1-16C alkyl radical, a 3-16C cycloalkyl radical, a (3-12C cycloalkyl)-(1-4C alkyl) radical, an optionally substituted phenyl or naphthyl radical, an optionally substituted phenyl(1-4C)alkyl or naphthyl(1-4C)alkyl radical or an optionally substituted diphenylmethyl radical, provided that at least one of R.sup.1, R.sup.2 and R.sup.9 is other than hydrogen; R.sup.3, R.sup.4, R.sup.7 and R.sup.8, which may be the same or different are each hydrogen, or an alkyl, cycloalkyl, (cycloalkyl)alkyl, phenyl, naphthyl, phenylalkyl, naphthylalkyl, or diphenylmethyl radical as defined above, or a 2-16 alkoxyalkyl radical, or R.sup.3, R.sup.4 and the nitrogen atom to which they are attached, or R.sup.7 and R.sup.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: January 28, 1986
    Assignee: Imperial Chemical Industries PLC
    Inventors: Philip N. Edwards, Michael S. Large