Patents by Inventor Shigeki Tazawa

Shigeki Tazawa 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: 7888487
    Abstract: Pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents a substituted C6-10 aryl group, etc., and n represents 0 to 2, R represents an optionally substituted C3-8 cycloalkyl group, etc., pharmaceutically acceptable salts thereof or prodrugs thereof, which exhibit an excellent inhibitory activity in human 1,5-anhydroglucitol/fructose/mannose transporter and are useful as agents for the prevention, inhibition of progression or treatment of a disease associated with the excess uptake of at least a kind of carbohydrates from glucose, fructose and mannose or a disease associated with hyperglycemia and pharmaceutical compositions comprising the same, pharmaceutical uses thereof, and intermediates for production thereof.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 15, 2011
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Publication number: 20100029919
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: , and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.
    Type: Application
    Filed: August 3, 2009
    Publication date: February 4, 2010
    Applicant: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Patent number: 7576064
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl, etc.; one of Q and T represents a group selected from the following: and the other represents -Z-Ar wherein Z represents —O—, —S—, etc.; Ar represents an optionally substituted C6-10 aryl, etc.; R represents an optionally substituted C3-8 cycloalkyl, an optionally substituted C6-10 aryl, etc., pharmaceutically acceptable salts thereof, and prodrugs thereof, which exhibit an excellent inhibitory activity in human sodium/glucose cotransporter (SGLT) and are useful as agents for the prevention, inhibition of progression or treatment of a disease associated with the excess uptake of at least a kind of carbohydrates selected from glucose, fructose and mannose (diabetes, postprandial hyperglycemia, impaired glucose tolerance, diabetic complications, etc.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: August 18, 2009
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Norihiko Kikuchi, Hideki Fujikura, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Patent number: 7576063
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 18, 2009
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Publication number: 20070060531
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl, etc.; one of Q and T represents a group selected from the following: , and the other represents -Z-Ar wherein Z represents —O—, —S—, etc.; Ar represents an optionally substituted C6-10 aryl, etc.; R represents an optionally substituted C3-8 cycloalkyl, an optionally substituted C6-10 aryl, etc., pharmaceutically acceptable salts thereof, and prodrugs thereof, which exhibit an excellent inhibitory activity in human sodium/glucose cotransporter (SGLT) and are useful as agents for the prevention, inhibition of progression or treatment of a disease associated with the excess uptake of at least a kind of carbohydrates selected from glucose, fructose and mannose (diabetes, postprandial hyperglycemia, impaired glucose tolerance, diabetic complications, etc.
    Type: Application
    Filed: June 15, 2004
    Publication date: March 15, 2007
    Inventors: Norihiko Kikuchi, Hideki Fujikura, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Publication number: 20060128635
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 15, 2006
    Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji