Patents by Inventor Biswanath De

Biswanath De 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: 6451859
    Abstract: Compounds having a structure according to the following formula: are effective in treating disorders such as bone disorders and glaucoma in a subject in need thereof.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Mitchell Anthony deLong, David Lindsey Soper, John August Wos, Biswanath De
  • Patent number: 6444840
    Abstract: The invention provides novel prostaglandin analogs. In particular, the present invention relates to compounds having a structure according to formula (I) wherein R1, R2, R3, R4, R5, R6, W, X, Z, a, b, p and q are defined below. This invention also includes optical isomers, diastereomers and enantiomers of formula (I), and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof. The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using these compounds or the compositions containing them.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: September 3, 2002
    Assignee: The Procter & Gamble Co.
    Inventors: Mitchell Anthony deLong, Jack Snyder Amburgey, Jr., John August Wos, Biswanath De, David Lindsey Soper
  • Patent number: 6417219
    Abstract: The invention provides compounds which are useful as inhibitors of metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I). Also disclosed are compounds, pharmaceutical compositions and methods of treating diseases characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: July 9, 2002
    Assignee: The Proctor & Gamble Company
    Inventors: Michael George Natchus, Biswanath De, Stanislaw Pikul, Neil Gregory Almstead, Roger Gunnard Bookland, Yetunde Olabisi Taiwo, Menyan Cheng
  • Patent number: 6410780
    Abstract: The invention provides novel prostaglandin analogs. In particular, the present invention relates to compounds having a structure according to formula (I) wherein R1, R2, R3, R4, R5, R6, W, X, Z, a, b, p and q are defined below. This invention also includes optical isomers, diastereomers and enantiomers of formula (I), and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof. The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using these compounds or the compositions containing them.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: June 25, 2002
    Assignee: The Procter & Gamble Co.
    Inventors: Mitchell Anthony deLong, Jack Snyder Amburgey, Jr., John August Wos, Biswanath De, David Lindsey Soper
  • Publication number: 20020072517
    Abstract: The invention provides compounds which are useful as inhibitors of metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I).
    Type: Application
    Filed: June 25, 2001
    Publication date: June 13, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Michael George Natchus, Biswanath De, Stanislaw Pikul, Neil Gregory Almstead, Roger Gunnard Bookland, Yetunde Olabisi Taiwo, Menyan Cheng
  • Patent number: 6399598
    Abstract: The invention provides compounds of formula as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptacle salt, or biohydrolyzable amide, ester, or imide thereof are useful as inhibitors of metalloproteases. Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 4, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Stanislaw Pikul, Neil Gregory Almstead, Rimma Sandler Bradley, Kelly Lynn McDow-Dunham, Biswanath De, Michael George Natchus, Yetunde Olabisi Taiwo, Thomas Lee Cupps
  • Publication number: 20020061877
    Abstract: The invention provides compounds which are useful as inhibitors of metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I).
    Type: Application
    Filed: June 25, 2001
    Publication date: May 23, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Michael George Natchus, Biswanath De, Stanislaw Pikul, Neil Gregory Almstead, Roger Gunnard Bookland, Yetunde Olabisi Taiwo, Menyan Cheng
  • Patent number: 6372730
    Abstract: The invention provides novel Prostaglandin F analogs. In particular, the present invention is directed to compounds having a structure according to the following formula: wherein R1, R2, X, Y, V, a, b, W, and Z are defined below. This invention also includes optical isomers, diastereomers and enantiomers of the formula above, and pharmaceutically—acceptable salts, biohydrolyzable amides, esters, and imides thereof. The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using these compounds or the compositions containing them.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: April 16, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Mitchell Anthony deLong, John August Wos, Biswanath De, Frank Hallock Ebetino
  • Publication number: 20020037913
    Abstract: Compounds having the general structure: 1
    Type: Application
    Filed: September 4, 2001
    Publication date: March 28, 2002
    Inventors: Mitchell Anthony deLong, David Lindsey Soper, John August Wos, Biswanath De
  • Patent number: 6329418
    Abstract: The invention provides compounds which are potent inhibitors of metalloproteases and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to compounds having a structure according to the following Formula (I): wherein R1, R2, X, Z, m, and n are defined below. to This invention also includes optical isomers, diastereomers and enantiomers of the formula above, and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof. The compounds of the present invention are useful for the treatment of diseases and conditions which are characterized by unwanted metalloprotease activity. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for metalloprotease-related maladies using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: December 11, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Menyan Cheng, Michael George Natchus, Biswanath De, Neil Gregory Almstead, Yetunde Olabisi Taiwo, Stanislaw Pikul
  • Patent number: 6218389
    Abstract: The invention provides compounds of formula as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable amide, ester, or imide thereof are useful as inhibitors of metalloproteases. Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: April 17, 2001
    Assignee: The Procter & Gamble Co.
    Inventors: Neil Gregory Almstead, Roger Gunnard Bookland, Yetunde Olabisi Taiwo, Rimma Sandler Bradley, Rodney Dean Bush, Biswanath De, Michael George Natchus, Stanislaw Pikul
  • Patent number: 6197770
    Abstract: Disclosed are compounds which are inhibitors of metalloproteases and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the compounds have a structure according to the following Formula (I): where X, W, Z, A, G, R1, R2, R3, R4, R5, R5′ and k have the meanings described in the specification. This invention also includes optical isomers, diastereomers and enantiomers of the formula above, and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof Also described are pharmaceutical compositions comprising these compounds, and methods of treating or preventing metalloprotease-related maladies using the compounds or the pharmaceutical compositions.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 6, 2001
    Assignee: The Procter & Gamble Co.
    Inventors: Michael George Natchus, Roger Gunnard Bookland, Neil Gregory Almstead, Stanislaw Pikul, Biswanath De, Menyan Cheng
  • Patent number: 6166005
    Abstract: The invention provides compounds of formula ##STR1## as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable amide, ester, or imide thereof are useful as inhibitors of metalloproteases. Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: December 26, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Biswanath De, Stanislaw Pikul, Menyan Cheng, Neil Gregory Almstead, Randall Stryker Matthews, Michael George Natchus, Yetunde Olabisi Taiwo
  • Patent number: 6150370
    Abstract: Disclosed are compounds which are inhibitors of metalloproteases having the following structure: ##STR1## where Ar, W, X, Y, Z, R.sub.1 and R.sub.2 have the meanings described in the specification and optical isomers, diastereomers, and enantiomers thereof or a pharmaceutically-acceptable salt, or biohydrolyzable amides, esters, or imides thereof. Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by unwanted metalloprotease activity using these compounds or pharmaceutical compositions.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: November 21, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Stanislaw Pikul, Kelly Lynn McDow-Dunham, Neil Gregory Almstead, Biswanath De, Michael George Natchus, Yetunde Olabisi Taiwo
  • Patent number: 6121272
    Abstract: The invention provides compounds which are useful as inhibitors of metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I) ##STR1## as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable alkoxyamide, ester, acyloxyamide, or imide thereof. Also disclosed are compounds, pharmaceutical compositions and methods of treating diseases characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: September 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Neil Gregory Almstead, Biswanath De, Rimma Sandler Bradley, Garry Steven Garrett, John Emory Marlin, II, John McMillan McIver, Zhe Wang, Yetunde Olabisi Taiwo
  • Patent number: 6121258
    Abstract: The invention provides compounds of formula ##STR1## as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable amide, ester, or imide thereof are useful as inhibitors of metalloproteases.Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: September 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Stanislaw Pikul, Neil Gregory Almstead, Rimma Sandler Bradley, Kelly Lynn McDow-Dunham, Biswanath De, Michael George Natchus, Yetunde Olabisi Taiwo, Thomas Lee Cupps
  • Patent number: 6107338
    Abstract: The invention provides novel PGF analogs. In particular, the present invention relates to compounds having a structure according to the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, X, Y, and Z are defined below. This invention also includes optical isomers, diastereomers and enantiomers of the formula above, and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof.The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using theses compounds or the compositions containing them.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: August 22, 2000
    Assignee: The Procter & Gamble Company
    Inventors: John August Wos, Mitchell Anthony deLong, Jack S. Amburgey, Jr., Haiyan George Dai, Cynthia Jean Miley, Biswanath De
  • Patent number: 6066751
    Abstract: It has been surprisingly discovered that the disadvantages of the lengthy literature procedures to synthesize 13,14-dihydro prostaglandin A, E, and F derivatives can be overcome using a novel Methyl 7-(2-hydroxy-5-(2-(2-oxiranyl)ethyl)-4-(1,1,2,2 tetramethyl-1-silapropoxy)cyclopentyl) heptanoate intermediate, which can be synthesized from commercially available Methyl 7-[3-(R)-hydroxy-5-oxo-1-cyclopent-1-yl] heptanoate. This novel intermediate can be coupled with oxygen, carbon, sulfur, and nitrogen nucleophiles, in the presence of a base or a Lewis acid, in a ring-opening process to provide 13,14-dihydro prostaglandin A, E, and F derivatives.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: May 23, 2000
    Assignee: The Procter & Gamble Company
    Inventors: John August Wos, Jack Snyder Amburgey, Jr., Mitchell Anthony deLong, Yili Wang, Haiyan George Dai, Biswanath De
  • Patent number: 6048895
    Abstract: The invention provides novel PGF analogs. In particular, the present invention relates to compounds having a structure according to the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, X, and Z are as defined. This invention also includes optical isomers, diastereomers and enantiomers of the formula above, and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof.The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using theses compounds or the compositions containing them.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: April 11, 2000
    Assignee: The Procter & Gamble Company
    Inventors: John August Wos, Mitchell Anthony deLong, Jack S. Amburgey, Jr., Haiyan George Dai, Biswanath De, David Lindsey Soper
  • Patent number: 6015912
    Abstract: The invention provides compounds of formula ##STR1## as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable amide, ester, or imide thereof are useful as inhibitors of metalloproteases.Also disclosed are pharmaceutical compositions and methods of treating diseases, disorders and conditions characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: January 18, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Zhe Wang, Neil Gregory Almstead, Rimma Sandler Bradley, Michael George Natchus, Biswanath De, Stanislaw Pikul, Yetunde Olabisi Taiwo