Patents by Inventor Alfred M. Ajami
Alfred M. Ajami 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: 20100292231Abstract: Compounds of formula (I) or formula (Ia) and a method of treating a patient suffering from certain inflammatory disorders, demyelinating disorders, FLT3-mediated disorders, CSF-1R-mediated disorders, cancers and leukemias, comprising administering to said patient a therapeutically effective amount of a compound of formula (I) or formula (Ia) or a pharmaceutically acceptable salt thereof. Definitions for the variables are provided herein.Type: ApplicationFiled: February 2, 2010Publication date: November 18, 2010Inventors: Alfred M. Ajami, Kenneth Duncan
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Publication number: 20100204263Abstract: A method of treating multidrug resistant cancers in a patient, comprising administering to said patient a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof. The values and preferred values for variables R1 and R2 are defined herein.Type: ApplicationFiled: January 9, 2008Publication date: August 12, 2010Inventors: Alfred M. Ajami, Robert L. Capizzi
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Publication number: 20100016300Abstract: A method of treating a FLT3-mediated condition in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof: (I), The conditions that can be treated by the compounds of the present invention and the definitions for the variables in formula (I) are provided herein.Type: ApplicationFiled: August 2, 2007Publication date: January 21, 2010Inventor: Alfred M. Ajami
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Patent number: 6989390Abstract: Disclosed is a salt of amonafide or amonafide analogs represented Structural Formula (I): R1 is —(CH2)nN+HR3R4 X? or R1 is —(CH2)nN+HR3R4 X? or —(CH2)nNR3R4 when R2 is —N+HR6R7. R2 is —OR5, halogen, —NR6R7, —N+HR6R7 X?? sulphonic acid, nitro, —NR5COOR5, —NR5COR5 or —OCOR5; R3 and R4 are independently H, C1-C4 alkyl group or, taken together with the nitrogen atom to which they are bonded, a non-aromatic nitrogen-containing heterocyclic group; each R5 is independently —H or a C1-C4 alkyl group; R6 and R7 are independently H, C1-C4 alkyl group or, taken together with the nitrogen atom to which they are bonded, a non-aromatic nitrogen-containing heterocyclic group; n is an integer from 0-3; and X? is the carboxylate anion of an organic carboxylic acid compound. Also disclosed are methods of preparing certain compounds represented by Structural Formula (I).Type: GrantFiled: October 20, 2003Date of Patent: January 24, 2006Assignee: Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, David O. Barlow
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Patent number: 6846842Abstract: A therapeutic composition comprising an alkyl, aralkyl, alkoxyalkyl or carboxyalkyl ester of 2-ketoalkanoic acid and a component for inducing and stabilizing the enol resonance form of the ester at physiological pH values is disclosed. The composition of the invention further comprises a pharmceutically acceptable carier vehicle in which the enol resonance form of the ester is stabilized at physiological pH values. Formulations containing the compositions of the invention permit the successful use of 2-ketoalkanoic acid esters, e.g., pyruvic acid esters, to treat, e.g., ischemic events, shock, organ reanimation, resuscitation and other recognized pyruvate-effective treatments. The compositions of the inventions are also useful in a process for preserving organ parts, organs or limbs removed from a living mammal and in need of preservation, e.g., for later transplantation to an organ recipient.Type: GrantFiled: April 4, 2002Date of Patent: January 25, 2005Assignees: Beth Israel Deconess Medical Center, Inc., Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, Carrie A. Sims, Mitchell P. Fink
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Publication number: 20040132763Abstract: Disclosed is a salt of amonafide or amonafide analogs represented Structural Formula (I): 1Type: ApplicationFiled: October 20, 2003Publication date: July 8, 2004Applicant: Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, David O. Barlow
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Patent number: 6740305Abstract: Methods of measuring gastric emptying time comprising providing to a patient a meal comprising a breath test food additive substrate, wherein the substrate is a linear or cyclic acyl aminoacid peptidomimetic that includes a radioactive or non-radioactively labeled carbon atom; having the patient digest the meal so that the carbon labeled nutrients therein are absorbed in the small intestine and metabolized to labeled CO2; and, at periodic intervals, detecting the level of labeled CO2 in breath samples taken from the patient to determine the rate of gastric emptying are disclosed.Type: GrantFiled: October 9, 2001Date of Patent: May 25, 2004Assignee: Xanthus Life Scienes, Inc.Inventor: Alfred M. Ajami
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Patent number: 6693198Abstract: Disclosed is a salt of amonafide or amonafide analogs represented Structural Formula (I): R1 is —(CH2)nN+HR3R4 X− or R1 is —(CH2)nN+HR3R4 X− or —(CH2)nNR3R4 when R2 is —N+HR6R7. R2 is —OR5, halogen, —NR6R7, —N+HR6R7 X− sulphonic acid, nitro, —NR5COOR5, —NR5COR5 or —OCOR5; R3 and R4 are independently H, C1-C4 alkyl group or, taken together with the nitrogen atom to which they are bonded, a non-aromatic nitrogen-containing heterocyclic group; each R5 is independently —H or a C1-C4 alkyl group; R6 and R7 are independently H, C1-C4 alkyl group or, taken together with the nitrogen atom to which they are bonded, a non-aromatic nitrogen-containing heterocyclic group; n is an integer from 0-3; and X− is the carboxylate anion of an organic carboxylic acid compound. Also disclosed are methods of preparing certain compounds represented by Structural Formula (I).Type: GrantFiled: April 22, 2002Date of Patent: February 17, 2004Assignee: Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, David O. Barlow
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Publication number: 20030203932Abstract: Disclosed is a salt of amonafide or amonafide analogs represented Structural Formula (I): 1Type: ApplicationFiled: April 22, 2002Publication date: October 30, 2003Applicant: Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, David O. Barlow
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Patent number: 6610270Abstract: It is an object of the present invention to provide in vivo analytical methods that allow for diagnosis and management of therapy for diseases involving discrete biochemical pathways. In the method of the invention, a labelled tracer probe, a specifically designed substrate of a “gateway” enzyme, an enzyme marking a regulatory point in a discrete biochemical pathway, is administered to a subject; a labelled product of the action of the enzyme is measured; and the appearance and concentration of the product are related to the disease condition of interest. Determination of the rate of substrate-product conversion of the gateway enzyme allows for the analysis to be made. The method involves administering a defined amount of a labelled “metaprobe” substrate of the gateway enzyme to a subject, at a site that provides access to a desired pool of the gateway enzyme in the subject, and measuring the amount of the chosen labelled product.Type: GrantFiled: December 18, 2000Date of Patent: August 26, 2003Assignee: Xanthus Life Sciences, Inc.Inventor: Alfred M. Ajami
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Publication number: 20030073743Abstract: A therapeutic composition comprising an alkyl, aralkyl, alkoxyalkyl or carboxyalkyl ester of 2-ketoalkanoic acid and a component for inducing and stabilizing the enol resonance form of the ester at physiological pH values is disclosed. The composition of the invention further comprises a pharmceutically acceptable carier vehicle in which the enol resonance form of the ester is stabilized at physiological pH values. Formulations containing the compositions of the invention permit the successful use of 2-ketoalkanoic acid esters, e.g., pyruvic acid esters, to treat, e.g., ischemic events, shock, organ reanimation, resuscitation and other recognized pyruvate-effective treatments. The compositions of the inventions are also useful in a process for preserving organ parts, organs or limbs removed from a living mammal and in need of preservation, e.g., for later transplantation to an organ recipient.Type: ApplicationFiled: April 4, 2002Publication date: April 17, 2003Applicant: Xanthus Life Sciences, Inc.Inventors: Alfred M. Ajami, Carrie A. Sims, Mitchell P. Fink
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Patent number: 6284219Abstract: It is an object of the present invention to provide in vivo analytical methods that allow for diagnosis and management of therapy for diseases involving discrete biochemical pathways. In the method of the invention, a labelled tracer probe, a specifically designed substrate of a “gateway” enzyme, an enzyme marking a regulatory point in a discrete biochemical pathway, is administered to a subject; a labelled product of the action of the enzyme is measured; and the appearance and concentration of the product are related to the disease condition of interest. Determination of the rate of substrate-product conversion of the gateway enzyme allows for the analysis to be made. The method involves administering a defined amount of a labelled “metaprobe” substrate of the gateway enzyme to a subject, at a site that provides access to a desired pool of the gateway enzyme in the subject, and measuring the amount of the chosen labelled product.Type: GrantFiled: June 30, 1998Date of Patent: September 4, 2001Assignee: Phenome Sciences Inc.Inventor: Alfred M. Ajami
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Patent number: 4775450Abstract: A process for dehalogenating halogenated organic compounds comprising:(1) combining in an electrochemical cell(a)(i) a halogenated organic compound or (ii) a solid or fluid containing a halogenated organic compound with(b) a compound capable of forming an iminium ion having the formula (I) ##STR1## wherein X represents an oxygen atom or a sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group, an aryl group or a heterocyclic group, and R.sub.1 and R.sub.2 may combine and form a carbocyclic ring or a heterocyclic ring, andR.sub.3 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or a halogen atom, and(2) applying an electrical voltage and an electrical current to an electrode of the electrochemical cell as a working electrode; which voltage is such that a reaction occurs and the halogenated organic compound is partially or completely dehalogenated.Type: GrantFiled: July 16, 1987Date of Patent: October 4, 1988Assignee: Tracer Technologies, Inc.Inventor: Alfred M. Ajami
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Patent number: 4707230Abstract: A process for dehalogenating halogenated organic compounds comprising:(1) combining in an electrochemical cell(a)(i) a halogenated organic compound or (ii) a solid or fluid containing a halogenated organic compound with(b) a compound capable of forming an iminium ion having the formula (I) ##STR1## wherein X represents an oxygen atom or a sulfur atom,R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group, an aryl group or a heterocyclic group, and R.sub.1 and R.sub.2 may combine and form a carbocyclic ring or a heterocyclic ring, andR.sub.3 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or a halogen atom, and(2) applying an electrical voltage and an electrical current to an electrode of the electrochemical cell as a working electrode; which voltage is such that a reaction occurs and the halogenated organic compound is partially or completely dehalogenated.Type: GrantFiled: September 23, 1985Date of Patent: November 17, 1987Assignee: Tracer Technologies, Inc.Inventor: Alfred M. Ajami
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Patent number: 4147840Abstract: Homotetra-alkyl substituted quaternary ammonium salts, or mixtures thereof which crystallize at 30.degree. C. or lower are included as an additive to the electrolyte of halogen cells. To maintain the salts as liquids, means for heating the additives to temperatures greater than 30.degree. C. are included in the cell. The additives form complexes with elemental chlorine, bromine, iodine, or mixtures thereof in the electrolyte which complexes comprise predominantly electrolyte insoluble liquids at temperatures in excess of 30.degree. C. The additives are characterized by rapid halogenation and dehalogenation while liquid; and thus, if maintained at temperatures in excess of 30.degree. C., are well suited for halogen storage in battery or fuel cell applications.Type: GrantFiled: March 24, 1978Date of Patent: April 3, 1979Assignee: Eco-Control, Inc.Inventors: Fraser M. Walsh, Dennis N. Crouse, Alfred M. Ajami
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Patent number: 4104447Abstract: Alkyl or haloalkyl substituted quaternary ammonium salts having a nitrogen cation symmetry number no greater than three, or mixtures thereof, are added to the electrolyte of otherwise conventional halogen cells. The compounds form complexes with elemental chlorine, bromine, iodine, or mixtures thereof in the electrolyte which complexes, comprise predominantly electrolyte-insoluble liquids at the temperatures at which the cells are normally run, are characterized by rapid halogenation and dehalogenation, and thus are well suited for halogen storage in battery or fuel cell applications. The shelf-life and capacity of electrochemical systems containing an additive of the invention are improved.Type: GrantFiled: September 26, 1977Date of Patent: August 1, 1978Assignee: Eco-Control, Inc.Inventors: Fraser M. Walsh, Dennis N. Crouse, Alfred M. Ajami
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Patent number: 4065601Abstract: Organic-aqueous two-phase electrolytes are disclosed in which the organic phase is capable of complexing halogen in cells and batteries of the type which utilize the electrochemical reaction X.sub.2 .revreaction.2X.sup.-, where X is Br, Cl, I or a combination of these halides. The organic phase of the two-phase electrolyte contains an organic halogen salt which provides both conductivity and the ability to complex halogens and prevent them from being dissolved in the aqueous phase of the electrolyte of the cell or battery in which they are used.Type: GrantFiled: September 14, 1976Date of Patent: December 27, 1977Assignee: Eco-Control, Inc.Inventors: Alfred M. Ajami, Fraser M. Walsh, Dennis N. Crouse
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Patent number: 4038460Abstract: Halogen complexing ethers are disclosed as an additive for use in complexing halogen in cells and batteries of the type which utilize the electrochemical reaction X.sub.2 .revreaction. 2X.sup.-, where X is Br, Cl, I or mixtures thereof. The ethers form insoluble oil-like complexes with the halogens which prevent the halogens from being dissolved in the electrolyte of the cell or battery in which they are used.Type: GrantFiled: March 17, 1976Date of Patent: July 26, 1977Assignee: Eco-Control, Inc.Inventors: Fraser M. Walsh, Dennis N. Crouse, Alfred M. Ajami
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Patent number: 4038459Abstract: Halogen complexing alcohols and nitriles are disclosed as additives for use in complexing halogens in cells and batteries of the type which utilize the electrochemical reaction X.sub.2 .revreaction.2X.sup.-, where X is Br, Cl, I, or a combination of these halides. The alcohols and nitriles form insoluble oil-like complexes with the halogens which prevent the halogens from being dissolved in the electrolyte of the cell or battery in which they are used.Type: GrantFiled: March 17, 1976Date of Patent: July 26, 1977Assignee: Eco-Control, Inc.Inventors: Alfred M. Ajami, Fraser M. Walsh, Dennis N. Crouse