Patents by Inventor Masato Koreeda
Masato Koreeda 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: 6720307Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.Type: GrantFiled: July 2, 2002Date of Patent: April 13, 2004Assignee: The University of MichiganInventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
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Publication number: 20030004321Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.Type: ApplicationFiled: July 2, 2002Publication date: January 2, 2003Inventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
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Patent number: 6462182Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.Type: GrantFiled: July 14, 2000Date of Patent: October 8, 2002Assignee: The University of MichiganInventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
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Patent number: 6103884Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.Type: GrantFiled: March 27, 1996Date of Patent: August 15, 2000Assignee: The University of MichiganInventors: Masato Koreeda, Roeland Tuinman, Brian Keith Shull
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Patent number: 6093805Abstract: Novel glycosides, especially steroidal and non-steroidal glycosides are provided. The steroidal and non-steroidal glycosides preferably are prepared from aglycons which possess valuable properties such as pharmacological properties. The glycosides are prepared from useful aglycons and possess useful properties which are the same as those of their respective unglycosylated aglycons. The glycosides are provided in acylated and deacylated form. The acylated glycosides after hydrolysis of the acyl groups possess enhanced water solubility properties, as illustrated in the case where the aglycon is acetominophen.Type: GrantFiled: August 21, 1997Date of Patent: July 25, 2000Assignee: The Regents of the University of MichiganInventors: Brian K. Shull, Roeland J. Tuinman, Todd A. Houston, R. Erich Klemke, Masato Koreeda
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Patent number: 5932709Abstract: The present invention relates to chemotherapeutic agents, and more particularly, to novel analogs of camptothecin. The camptothecin analogs display increased solubility through the hydrophilicity of added non-ionic sugar substituents. In accordance with the present invention, a member from the class of novel camptothecin analogs is to be delivered in vivo as a chemotherapeutic agent to fight cancer growth in the body.Type: GrantFiled: June 16, 1997Date of Patent: August 3, 1999Assignee: University of MichiganInventors: Brian Keith Shull, Clarke Slemon, Masato Koreeda
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Patent number: 5693767Abstract: Novel glycosides, especially steroidal and non-steroidal glycosides are provided. The steroidal and non-steroidal glycosides preferably are prepared from aglycons which possess valuable properties such as pharmacological properties. The glycosides are prepared from useful aglycons and possess useful properties which are the same as those of their respective unglycosylated aglycons. The glycosides are provided in acylated and deacylated form. The acylated glycosides after hydrolysis of the acyl groups possess enhanced water solubility properties, as illustrated in the case where the aglycon is acetominophen.Type: GrantFiled: June 1, 1994Date of Patent: December 2, 1997Assignee: Harrier Inc.Inventors: R. -Erich Klemke, Masato Koreeda, Todd A. Houston, Brian K. Shull, Roeland J. Tuinman
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Patent number: 5677286Abstract: The present invention relates to chemotherapeutic agents, and more particularly, to novel analogs of camptothecin. The camptothecin analogs display increased solubility through the hydrophilicity of added non-ionic sugar substituents. In accordance with the present invention, a member from the class of novel camptothecin analogs is to be delivered in vivo as a chemotherapeutic agent to fight cancer growth in the body.Type: GrantFiled: April 27, 1995Date of Patent: October 14, 1997Assignee: The University of MichiganInventors: Brian K. Shull, Clarke Slemon, Masato Koreeda
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Patent number: 5668168Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.Type: GrantFiled: June 6, 1995Date of Patent: September 16, 1997Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of MichiganInventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
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Patent number: 5556875Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.Type: GrantFiled: August 24, 1995Date of Patent: September 17, 1996Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of MichiganInventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
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Patent number: 5453500Abstract: Novel water-soluble mono and disaccharides of 1,2-dithiins, as well as methods for their synthesis and the synthesis of 3,6-bis(hydroxymethyl)-1,2-dithiin, are provided. The water-soluble compounds have useful medicinal applications, e.g., as an antifungal agent or antibacterial agent in a pharmaceutically acceptable carrier.Type: GrantFiled: May 26, 1994Date of Patent: September 26, 1995Assignee: The University of MichiganInventors: Masato Koreeda, Brian K. Shull, Wu Yang
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Patent number: 5414074Abstract: The invention concerns C-glycosylated derivatives of soft carbon nucleophile compounds, particularly compounds which contain acid-labile structural units. The invention further concerns a mild, cost-effective, non-hazardous and stereoselective method of general application employing a glycal as a glycosyulating agent and iodine as a catalyst for the preparation of C-glycosylated soft carbon nucleophile compounds.Type: GrantFiled: September 25, 1992Date of Patent: May 9, 1995Assignee: University of MichiganInventors: Masato Koreeda, Todd A. Houston