Patents by Inventor Qun Shi
Qun Shi 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: 20120225828Abstract: Melanocortin receptor-specific cyclic peptides of the formula where R1, R2, R3, R4, R5, R6, R7, R8 and R9 are as defined in the specification, compositions and formulations including the peptides of the foregoing formula or salts thereof, and methods of preventing, ameliorating or treating melanocortin-1 receptor-mediated or responsive diseases, indications, conditions and syndromes.Type: ApplicationFiled: May 16, 2012Publication date: September 6, 2012Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Wei Yang, Yi-Qun Shi
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Patent number: 8247530Abstract: A melanocortin-4 receptor agonist cyclic peptide of the formula where R1, R2, R3, R4a, R4b, R5, R6, R7a, R7b, x, y and z are as defined in the specification, and a method of treating sexual dysfunction, including male erectile dysfunction and female sexual dysfunction, and other melanocortin 4 receptor responsive conditions and disorders.Type: GrantFiled: November 7, 2006Date of Patent: August 21, 2012Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Kevin D. Burris, Annette Shadiack, Ramesh Rajpurohit
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Publication number: 20120178701Abstract: Melanocortin receptor-specific cyclic peptides of the formula where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and z are as defined in the specification, compositions and formulations including the peptides of the foregoing formula, and methods of preventing, ameliorating or treating melanocortin receptor-mediated diseases, indications, conditions and syndromes.Type: ApplicationFiled: December 6, 2011Publication date: July 12, 2012Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Yi-qun Shi, Shubh D. Sharma, John H. Dodd, Wei Yang, Xin Chen
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Publication number: 20120046219Abstract: The invention relates to melanocortin receptor-specific cyclic peptides of Formula (I) or a pharmaceutically acceptable salt thereof, where R1, R2, R3, R4a, R4b, R4c, R5, x and y are as defined in the specification. These compounds are particularly useful in the treatments of energy homeostasis and metabolism related (e.g. diabetes), food intake related and/or energy balance and body weight related diseases, disorders and/or conditions, including obesity, overweight and diseases, disorders and/or conditions associated with obesity and/or overweight, such as type 2 diabetes and metabolic syndrome.Type: ApplicationFiled: October 26, 2011Publication date: February 23, 2012Applicant: AstraZeneca ABInventors: John H. DODD, Yi-Qun Shi, Wei Yang
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Publication number: 20110178080Abstract: Melanocortin receptor-specific compounds of formula I below: wherein the variables are as defined in the specification, and enantiomers, diastereomers and pharmaceutically acceptable salts thereof. Compounds disclosed herein bind to one or more melanocortin receptors and may be an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist as to one or more melanocortin receptors, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders.Type: ApplicationFiled: March 29, 2011Publication date: July 21, 2011Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Yi-Qun Shi, John H. Dodd, Elizabeth G. Rowley, Gary L. Olson, Axel Metzger
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Patent number: 7968548Abstract: Melanocortin receptor-specific compounds with diamine groups of the general formula and pharmaceutically acceptable salts thereof, where W is a diamine heteroatom unit with at least one cationic center, hydrogen bond donor or hydrogen bond acceptor, J, Q, L1, L2, L3, R1a, R1b, R2a, R2b and X are as defined in the specification, and the carbon atom marked with an asterisk can have any stereochemical configuration. Compounds disclosed herein bind to one or more melanocortin receptors and may be an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist as to one or more melanocortin receptors, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders, including specifically treatment of obesity and related conditions.Type: GrantFiled: August 11, 2006Date of Patent: June 28, 2011Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Kevin D. Burris, Zhijun Wu, Papireddy Purma, Yadi Reddy Bonuga
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Patent number: 7964601Abstract: A melanocortin receptor-specific compound of the general formula of structure I: where X, R1, R2a, R2b, R3, R4a, R4b, R5a and R5b are as defined in the specification, which compound binds with high affinity to one or more melanocortin receptors and is optionally an agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist, and may be employed for treatment of one or melanocortin receptor-associated conditions or disorders, and methods for the use of the compounds of the invention.Type: GrantFiled: June 2, 2008Date of Patent: June 21, 2011Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Ramesh Rajpurohit, Zhijun Wu, Papireddy Purma, Annette M. Shadiack, Kevin D. Burris
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Publication number: 20110065652Abstract: A melanocortin receptor agonist cyclic peptide of the formula where R, x and y are as defined in the specification, compositions and formulations including the peptide of the foregoing formula, and methods of preventing, ameliorating or treating melanocortin receptor-mediated diseases, indications, conditions and syndromes, including sexual dysfunction such as male erectile dysfunction and female sexual dysfunction.Type: ApplicationFiled: November 23, 2010Publication date: March 17, 2011Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Yi-Qun Shi, Shubh D. Sharma, Wei Yang, Xin Chen
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Publication number: 20110009341Abstract: A melanocortin-4 receptor agonist cyclic peptide of the formula where R1, R2, R3, R4a, R4b, R5, R6, R7a, R7b, x, y and z are as defined in the specification, and a method of treating sexual dysfunction, including male erectile dysfunction and female sexual dysfunction, and other melanocortin 4 receptor responsive conditions and disorders.Type: ApplicationFiled: November 7, 2006Publication date: January 13, 2011Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Shubh D. Sharma, Yi-Qun Shi, Kevin D. Burris, Annette Shadiack, Ramesh Rajpurohit
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Publication number: 20100311648Abstract: The invention relates to melanocortin receptor-specific cyclic peptides of Formula (I) or a pharmaceutically acceptable salt thereof, where R1, R2, R3, R4a, R4b, R4c, R5, x and y are as defined in the specification. These compounds are particularly useful in the treatments of energy homeostasis and metabolism related (e.g. diabetes), food intake related and/or energy balance and body weight related diseases, disorders and/or conditions, including obesity, overweight and diseases, disorders and/or conditions associated with obesity and/or overweight, such as type 2 diabetes and metabolic syndrome.Type: ApplicationFiled: June 7, 2010Publication date: December 9, 2010Applicant: AstraZeneca ABInventors: John H. DODD, Yi-Qun Shi, Wei Yang
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Patent number: 7834017Abstract: There is provided compounds having the formula of structure I: wherein the groups —C(R8)(CH2)vCH(R9)(CH2)y-Q and —C(R8)(CH2)vCH(R9)(CH2)y-J are the same, and R1a, R1b, R2a, R2b, R8, R9, J, Q, W, X, L2, v and y have meanings given in the description. The use of such compounds in the treatment of a condition responsive to changes in melanocortin receptor function in a human or non-human mammal (e.g. male sexual dysfunction, female sexual dysfunction, an eating disorder, above optimal body weight, obesity, below-optimal body weight or cachexia) is also described.Type: GrantFiled: August 10, 2007Date of Patent: November 16, 2010Assignee: Palatin Technologies, Inc.Inventors: Kevin Burris, Yi-Qun Shi, Shubh D. Sharma, Yadi Reddy Bonuga, Papireddy Purma
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Patent number: 7807678Abstract: The invention relates to a method of deriving a peptidomimetic of a biologically active metallopeptide, wherein the peptidomimetic includes at least one non-peptide ring structure defining a template space superimposable on a corresponding defined template space of the metallopeptide, and where the peptidomimetic further includes at least two elements independently including an amino acid residue, amino acid side chain moiety or derivative thereof, the elements defining and occupying a similar descriptor space as corresponding elements of the metallopeptide. The invention further relates to peptidomimetics with a template space heterocyclic ring structure, including 5-, 6- and 8-membered and 5-5- and 6-5-bicyclic fused ring structure melanocortin receptor-specific peptidomimetics.Type: GrantFiled: February 10, 2004Date of Patent: October 5, 2010Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Zhijun Wu, Ramesh Rajpurohit
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Patent number: 7727991Abstract: Melanocortin receptor-specific compounds of the general formula and pharmaceutically acceptable salts thereof, where J is a substituted or unsubstituted monocyclic or bicyclic ring structure, W is a heteroatom unit with at least one cationic center, hydrogen bond donor or hydrogen bond acceptor, Q is a substituted or unsubstituted aromatic carbocyclic ring group, L, R2a, R2b, R3a, R3b, r, x and y are as defined in the specification, and the carbon atoms marked with an asterisk can have any stereochemical configuration. Compounds disclosed herein bind to one or more melanocortin receptors and may be an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist as to one or more melanocortin receptors, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders, including specifically treatment of obesity and related conditions.Type: GrantFiled: August 11, 2006Date of Patent: June 1, 2010Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Kevin D. Burris, Zhijun Wu, Papireddy Purma, Yadi Reddy Bonuga
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Patent number: 7727990Abstract: Melanocortin receptor-specific compounds of the general formula and pharmaceutically acceptable salts thereof, where X, W, J, Q, L1, L2, L3, R1a, R1b, R2a, and R2b are as defined in the specification, and the carbon atom marked with an asterisk can have any stereochemical configuration. Compounds disclosed herein bind to one or more melanocortin receptors and may be an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist as to one or more melanocortin receptors, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders, including specifically treatment of obesity and related conditions.Type: GrantFiled: August 11, 2006Date of Patent: June 1, 2010Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Kevin D. Burris, Zhijun Wu, Papireddy Purma, Yadi Reddy Bonuga
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Patent number: 7718802Abstract: Melanocortin receptor-specific compounds of the general formulas and pharmaceutically acceptable salts thereof, where J is a substituted or unsubstituted monocyclic or bicyclic ring structure, L is a linker, W is a heteroatom unit with at least one cationic center, hydrogen bond donor or hydrogen bond acceptor, Q includes a substituted or unsubstituted aromatic carbocyclic ring, R6, R7, y and z are as defined in the specification, and the carbon atom marked with an asterisk can have any stereochemical configuration, and optionally with one or two additional ring substituents as defined, which compounds bind to one or more melanocortin receptors and are optionally an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders, and methods for the use of the compounds of the invention.Type: GrantFiled: April 5, 2005Date of Patent: May 18, 2010Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Ramesh Rajpurohit, Zhijun Wu
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Patent number: 7709484Abstract: A substituted piperazine compound having the structure I: or the structure IX: or an enantomeric, stereoisomeric or diastereomeric form of the foregoing, and pharmaceutically acceptable salts thereof, where J, L, Q, W, A, R6, R7, z and y are as defined in the specification, and the carbon atoms marked with an asterisk can have any stereochemical configuration, which compounds bind to one or more melanocortin receptors and may be employed in pharmaceutical preparations for treatment of one or more melanocortin receptor-associated conditions or disorders, and methods for the use of the compounds of the invention.Type: GrantFiled: April 19, 2005Date of Patent: May 4, 2010Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Zhijun Wu, Bolun Hu, Ramesh Rajpurohit
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Publication number: 20090305960Abstract: Melanocortin receptor-specific cyclic peptides of the formula where R1, R2, R3, R4, x and y are as defined in the specification, compositions and formulations including the peptides of the foregoing formula, and methods of preventing, ameliorating or treating melanocortin receptor-mediated diseases, indications, conditions and syndromes, including obesity, diabetes, modulation of feeding behavior and related metabolic syndrome.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Applicant: Palatin Technologies, IncInventors: Xin Chen, Shubh D. Sharma, Yi-Qun Shi, Wei Yang
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Patent number: 7601753Abstract: Melanocortin receptor-specific pyrrolidine compounds having the structure: and stereoisomer and pharmaceutically acceptable salts thereof, where R1, R2, and R3 are as described in the specification, preferably where R3 is a D-amino acid with at least one substituted or unsubstituted phenyl or naphthyl aromatic ring, and where R3 optionally further includes an amine capping group or from one to three additional amino acid residues, optionally with an amine capping group, which compounds are agonists, antagonists or mixed agonists and antagonists at one or more melanocortin receptors, and having utility in the treatment of melanocortin receptor-related disorders and conditions. Methods of synthesis of compounds of structure (I), pharmaceutical compositions containing a compound of structure (I) and methods relating to the use thereof are also disclosed.Type: GrantFiled: March 1, 2007Date of Patent: October 13, 2009Assignee: Palatin Technologies, Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Zhijun Wu, Ramesh Rajpurohit
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Patent number: 7456184Abstract: A melanocortin receptor-specific compound of the general formula of structure I: where X, R1, R2a, R2b, R3, R4a, R4b, R5a and R5b are as defined in the specification, which compound binds with high affinity to one or more melanocortin receptors and is optionally an agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist, and may be employed for treatment of one or melanocortin receptor-associated conditions or disorders, and methods for the use of the compounds of the invention.Type: GrantFiled: April 30, 2004Date of Patent: November 25, 2008Assignee: Palatin Technologies Inc.Inventors: Shubh D. Sharma, Yi-Qun Shi, Zhijun Wu, Ramesh Rajpurohit, Annette M. Shadiack, Papireddy Purma, Kevin D. Burris
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Publication number: 20080255033Abstract: Metallopeptides with a sequence of a biologically active gamma-melanocyte stimulating hormone sequence of length n residues, wherein a residue including a nitrogen atom and sulfur atom each available for complexation to a metal ion is inserted at any position from between the two and three position to the C-terminus side of the n position, or alternatively is substituted for the residue at any position from the three position to the n position, with a metal ion complexed thereto, with any proline (Pro) residue which is either of the two residues on the immediately adjacent N-terminus side of the inserted or substituent residue comprising a nitrogen atom and sulfur atom available for complexation to a metal ion is substituted with a homolog.Type: ApplicationFiled: June 10, 2008Publication date: October 16, 2008Applicant: PALATIN TECHNOLOGIES, INC.Inventors: Shubh D. Sharma, Yi-Qun Shi, Ramesh Rajpurohit, Hui-Zhi Cai, Margarita Bastos