Patents by Inventor Alan Hornsby Davidson
Alan Hornsby Davidson 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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Publication number: 20210361772Abstract: Covalent conjugation of an alpha amino acid ester to a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid, leads to accumulation of the carboxylic acid hydrolysis product in the cell and enables improved or more prolonged enzyme or receptor modulation relative to the unconjugated modulator.Type: ApplicationFiled: May 21, 2021Publication date: November 25, 2021Applicant: GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITEDInventors: Alan Hornsby DAVIDSON, Alan Hastings DRUMMOND, Lindsey Ann NEEDHAM
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Publication number: 20190231887Abstract: Covalent conjugation of an alpha amino acid ester to a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid, leads to accumulation of the carboxylic acid hydrolysis product in the cell and enables improved or more prolonged enzyme or receptor modulation relative to the unconjugated modulator.Type: ApplicationFiled: January 24, 2019Publication date: August 1, 2019Inventors: Alan Hornsby DAVIDSON, Alan Hastings DRUMMOND, Lindsey Ann NEEDHAM
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Publication number: 20180000952Abstract: Covalent conjugation of an alpha amino acid ester to a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid, leads to accumulation of the carboxylic acid hydrolysis product in the cell and enables improved or more prolonged enzyme or receptor modulation relative to the unconjugated modulator.Type: ApplicationFiled: July 14, 2017Publication date: January 4, 2018Inventors: Alan Hornsby Davidson, Alan Hastings Drummond, Lindsey Ann Needham
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Patent number: 9725407Abstract: Compounds of formula (I) inhibit HDAC activity: wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is an ester group; R2 is the side chain of a natural or non-natural alpha-amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: GrantFiled: January 22, 2016Date of Patent: August 8, 2017Assignee: GlaxoSmithKline Intellectual Property Development LimitedInventors: Alan Hornsby Davidson, David Festus Charles Moffat, Francesca Ann Day, Alastair David Graham Donald
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Enzyme and receptor modulation using covalent conjugates of alpha,alpha-disubstituted glycine esters
Patent number: 9636409Abstract: Covalent conjugates of an ?,?-disubstituted glycine ester and a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid and the ?,?-disubstituted glycine ester is conjugated to the modulator at a position remote from the binding interface between the inhibitor and the target enzyme or receptor pass into cells and the active acid hydrolysis product accumulates within the cells, as in the following compound:Type: GrantFiled: February 8, 2016Date of Patent: May 2, 2017Assignee: GlaxoSmithKline Intellectual Property Development LimitedInventors: Alan Hastings Drummond, Alan Hornsby Davidson, David Festus Charles Moffat, Alastair David Graham Donald, Stephen John Davies -
Publication number: 20160151509Abstract: Covalent conjugates of an ?,?-disubstituted glycine ester and a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid and the ?,?-disubstituted glycine ester is conjugated to the modulator at a position remote from the binding interface between the inhibitor and the target enzyme or receptor pass into cells and the active acid hydrolysis product accumulates within the cells.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventors: Alan Hastings Drummond, Alan Hornsby Davidson, David Festus Charles Moffat, Alastair David Graham Donald, Stephen John Davies, Margaret Struthers Drummond
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Publication number: 20160137594Abstract: Compounds of formula (I) inhibit HDAC activity: wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is an ester group; R2 is the side chain of a natural or non-natural alpha-amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: ApplicationFiled: January 22, 2016Publication date: May 19, 2016Inventors: Alan Hornsby DAVIDSON, David Festus Charles MOFFAT, Francesca Ann DAY, Alastair David Graham DONALD
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Patent number: 9273003Abstract: Compounds of formula (I) inhibit HDAC activity: wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: GrantFiled: July 7, 2014Date of Patent: March 1, 2016Assignee: GlaxoSmithKline Intellectual Property Development LimitedInventors: Alan Hornsby Davidson, David Festus Charles Moffat, Francesca Ann Day, Alastair David Graham Donald
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Patent number: 9133104Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; Y is a bond, —C(?O), —S(?O)2—, —C(?O)O—, —C(O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1, Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula —X2-Q1- or -Q1-X2— wherein X2 is —O—, S— or NRA— wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic rType: GrantFiled: February 13, 2014Date of Patent: September 15, 2015Assignee: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Charles Moffat, Kenneth William John Baker, Alastair David Graham Donald
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Publication number: 20150126534Abstract: Covalent conjugation of an alpha amino acid ester to a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid, leads to accumulation of the carboxylic acid hydrolysis product in the cell and enables improved or more prolonged enzyme or receptor modulation relative to the unconjugated modulator.Type: ApplicationFiled: October 7, 2014Publication date: May 7, 2015Inventors: Alan Hornsby Davidson, Alan Hastings Drummond, Lindsey Ann Needham
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Patent number: 8962825Abstract: Compounds of formula (I), and salts, N-oxides, hydrates and solvates thereof are histone deacetylase inhibitors and are useful in the treatment of cell proliferative diseases, including cancers: wherein Q, V and W independently represent —N? or —C?; B is a divalent radical selected from (B1), (B2), (B3), (B4), (B5) and (B6). wherein the bond marked * is linked to the ring containing Q, V and W through -[Linker1]- and the bond marked ** is linked to A through -[Linker2]-; A is an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system; -[Linker1]- and -[Linker2]- independently represent a bond, or a divalent linker radical; and R is (a) a radical of formula R1R2CHNH—Y-L1-X1—(CH2)z— or (b) a radical of formula R-L1-Y1—(CH2)z—.Type: GrantFiled: October 30, 2006Date of Patent: February 24, 2015Assignee: GlaxoSmithKline Intellectual Property Development LimitedInventors: David Charles Festus Moffat, Sanjay Ratilal Patel, Francesca Ann Day, Andrew James Belfield, Alistair David Graham Donald, Alan Hornsby Davidson, Alan Hastings Drummond
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Publication number: 20140323531Abstract: Compounds of formula (I) inhibit HDAC activity: wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: ApplicationFiled: July 7, 2014Publication date: October 30, 2014Inventors: Alan Hornsby DAVIDSON, David Festus Charles Moffat, Francesca Ann Day, Alastair David Graham Donald
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Publication number: 20140163042Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; Y is a bond, —C(?O), —S(?O)2—, —C(?O)O—, —C(O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1, Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula —X2-Q1- or -Q1-X2— wherein X2 is —O—, S— or NRA— wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic rType: ApplicationFiled: February 13, 2014Publication date: June 12, 2014Applicant: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Charles Moffat, Kenneth William John Baker, Alastair David Graham Donald
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Patent number: 8686032Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers:Type: GrantFiled: December 1, 2010Date of Patent: April 1, 2014Assignee: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
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Publication number: 20140088159Abstract: Covalent conjugates of an ?,?-disubstituted glycine ester and a modulator of the activity of a target intracellular enzyme or receptor, wherein the ester group of the conjugate is hydrolysable by one or more intracellular carboxylesterase enzymes to the corresponding acid and the ?,?-disubstituted glycine ester is conjugated to the modulator at a position remote from the binding interface between the inhibitor and the target enzyme or receptor pass into cells and the active acid hydrolysis product accumulates within the cells.Type: ApplicationFiled: November 27, 2013Publication date: March 27, 2014Applicant: Chroma Therapeutics Ltd.Inventors: Alan Hastings Drummond, Alan Hornsby Davidson, David Festus Charles Moffat, Alastair David Graham Donald, Stephen John Davies
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Patent number: 8637547Abstract: Compounds of formula (I) inhibit HDAC activity, wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: GrantFiled: September 14, 2007Date of Patent: January 28, 2014Assignee: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, David Charles Festus Moffat, Francesca Ann Day, Alistair David Graham Donald
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Publication number: 20130197042Abstract: Compounds of formula (I) inhibit HDAC activity: wherein A, B and D independently represent ?C— or ?N—; W is a divalent radical —CH?CH— or CH2CH2—; R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; z is 0 or 1; and Y, L1, and X1 are as defined in the claims.Type: ApplicationFiled: March 14, 2013Publication date: August 1, 2013Inventors: Alan Hornsby DAVIDSON, David Charles Festus MOFFAT, Francesca Ann DAY, Alastair David Grahm DONALD
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Publication number: 20130116318Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers:Type: ApplicationFiled: December 1, 2010Publication date: May 9, 2013Applicant: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
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Patent number: 8211900Abstract: Compounds of formula (I) or (II) are dihydrofolate reductase inhibitors, useful for the treatment of, for example, cell proliferative diseases: wherein A and D are independently —CHR7— or —NR7—; E and G are independently ?CR7— or ?N—; each R6 independently represents hydrogen or —OR7; R7 is hydrogen or C1-C6 alkyl; R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxylesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid which does not contain a carboxyl, or carboxyl ester group; Y is a bond, —C(?O)—, —S(?O)2—, —C(?O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1, and Q, Alk1 and Alk2 are as defined in the claims; X1 represents a bond; —C(?O); or —S(?O)2—; —NR4C(?O)—, —C(?O)NR4—, —NR4C(?O)NR5—, —NR4S(?O)2—, or —S(?O)2NR4— wherein RType: GrantFiled: April 24, 2007Date of Patent: July 3, 2012Assignee: Chroma Therapeutics Ltd.Inventor: Alan Hornsby Davidson
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Patent number: 8148531Abstract: Compounds of formula (IA) or (IB), are inhibitors of aurora kinase activity: Formula (IA), (IB) wherein -L1Y1-[CH2]z- is a linker radical wherein Y1, L1 and z are as defined in the claims; R6 is C1-C4alkoxy, hydrogen or halo; W represents a bond, —CH2—, —O—, —S—, —S(?O)2—, or —NR5— where R5 is hydrogen or C1-C4 alkyl; Q is ?N—, ?CH— or ?C(X1)— wherein X1 is cyano, cyclopropyl or halo; linker radicals L2 are as defined in the claims; R is a radical of formula (X) or (Y): wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxylesterase enzymes to a carboxylic acid group; R4 is hydrogen; or optionally substituted C1-C6 alkyl, C3-C7 cycloalkyl, aryl, aryl(C1-C6 alkyl)-, heteroaryl, heteroaryl(C1-C6 alkyl)-, —(C?O)R3, —(C?O)OR3, or —(C?O)NR3 wherein R3 is hydrogen or optionally substituted (C1-C6)alkyl, C3-C7 cycloalkyl, aryl, aryl(C1-C6 alkyl)-, heteroaryl, or heteroaryl(C1-C6 alkyl)-; R41 is hydrogen or optionally substituted C1-C6 alkyl; and DType: GrantFiled: May 4, 2006Date of Patent: April 3, 2012Assignee: Chroma Therapeutics Ltd.Inventors: Alan Hornsby Davidson, Stephen John Davies, David Festus Charles Moffat