Patents by Inventor Annapurna Pendri

Annapurna Pendri 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).

  • Publication number: 20080004265
    Abstract: The invention encompasses a series bicyclic pyrimidinone compounds of Formula I which inhibit HIV integrase and prevent viral integration into human DNA. This action makes the compounds useful for treating HIV infection and AIDS. The invention also encompasses pharmaceutical compositions and methods for treating those infected with HIV.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 3, 2008
    Inventors: Michael A. Walker, Chen Li, Katharine A. Grant-Young, John D. Matiskella, B. Narasimhulu Naidu, Jacques Banville, Francis Beaulieu, Carl Ouellet, Annapurna Pendri, Roger Remillard, Yasutsugu Ueda, Ting T. Yin
  • Publication number: 20060286065
    Abstract: Activated polymeric bicine derivatives such as as well as conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.
    Type: Application
    Filed: August 9, 2006
    Publication date: December 21, 2006
    Inventors: Hong Zhao, Richard Greenwald, Annapurna Pendri
  • Patent number: 7122189
    Abstract: Activated polymeric bicine derivatives such as as well as conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 17, 2006
    Assignee: Enzon, Inc.
    Inventors: Hong Zhao, Richard B. Greenwald, Annapurna Pendri
  • Patent number: 7109186
    Abstract: The present invention describes novel compounds of Formula I which inhibit HIV integrase.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: September 19, 2006
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Walker, Zhuping Ma, B. Narasimhulu Naidu, Margaret E. Sorenson, Annapurna Pendri, Jacques Banville, Serge Plamondon, Roger Remillard
  • Publication number: 20060160850
    Abstract: The present application describes compounds according to Formula I, pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents and methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents. The compounds have the general Formula I: including all prodrugs, pharmaceutically acceptable salts and stereoisomers, R1, R2, R3, n, and Z are described herein.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 20, 2006
    Inventors: Chongqing Sun, William Ewing, Yanting Huang, Annapurna Pendri, Samuel Gerritz, Bruce Ellsworth, Natesan Murugesan
  • Publication number: 20050171110
    Abstract: The present application describes compounds according to Formula I, pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents and methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents. The compounds have the general Formula I. including all prodrugs, pharmaceutically acceptable salts and stereoisomers, R1, R2, R3, R4, R5, m and n are described herein.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 4, 2005
    Inventors: Guixue Yu, William Ewing, Amarendra Mikkilineni, Annapurna Pendri, Bruce Ellsworth, Philip Sher, Samuel Gerritz, Chongqing Sun, Natesan Murugesan, Ximao Wu
  • Publication number: 20050143381
    Abstract: The present application describes compounds according to Formula I, pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents and methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents. The compounds have the general Formula I: including all prodrugs, pharmaceutically acceptable salts and stereoisomers, R1, R2, R3, R6, R7, m and n are described herein.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 30, 2005
    Inventors: Guixue Yu, William Ewing, Amarendra Mikkilineni, Annapurna Pendri, Philip Sher, Samuel Gerritz, Bruce Ellsworth, Gang Wu, Yanting Huang, Chongqing Sun, Natesan Murugesan, Zhengxiang Gu, Ying Wang, Doree Sitkoff, Stephen Johnson, Ximao Wu
  • Publication number: 20050080087
    Abstract: The present application describes compounds according to Formula I, wherein A, B, E, R1, R2, R3, R4, Y and Z are described herein. Additionally, the present application describes pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents. Finally, the present application describes methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents.
    Type: Application
    Filed: October 6, 2004
    Publication date: April 14, 2005
    Inventors: Annapurna Pendri, Samuel Gerritz, Dharmpal Dodd, Chongqing Sun
  • Publication number: 20050054659
    Abstract: The present application describes compounds according to Formula I, wherein A, G1, G2 and R1 are described herein. Additionally, the present application describes pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents. Finally, the present application describes methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents.
    Type: Application
    Filed: August 12, 2004
    Publication date: March 10, 2005
    Inventors: Bruce Ellsworth, Chongqing Sun, Annapurna Pendri
  • Publication number: 20040110804
    Abstract: The present invention describes novel compounds of Formula I which inhibit HIV integrase. The invention also describes compositions and treatments of AIDS or ARC by using these compounds.
    Type: Application
    Filed: July 9, 2003
    Publication date: June 10, 2004
    Inventors: Michael A. Walker, Zhuping Ma, B. Narasimhulu Naidu, Margaret E. Sorenson, Annapurna Pendri, Jacques Banville, Serge Plamondon, Roger Remillard
  • Publication number: 20040053976
    Abstract: The present invention is directed to polymeric-prodrug transport forms of the formula: 1
    Type: Application
    Filed: August 8, 2003
    Publication date: March 18, 2004
    Inventors: Anthony J. Martinez, Annapurna Pendri, Richard B. Greenwald, Yun H. Choe
  • Publication number: 20040037802
    Abstract: Activated polymeric bicine derivatives such as 1
    Type: Application
    Filed: August 13, 2002
    Publication date: February 26, 2004
    Inventors: Hong Zhao, Richard B. Greenwald, Annapurna Pendri
  • Patent number: 6638499
    Abstract: The present invention is directed to polymeric-prodrug transport forms of the formula: wherein: E1-4 are independently selected from the group consisting of hydrogen, C1-6 alkyls, C3-12 branched alkyls, C3-8 cycloalkyls, C1-6 substituted alkyls, C3-8 substituted cycloalkyls, aryls, substituted aryls, aralkyls, C1-6 heteroalkyls, substituted C1-6 heteroalkyls, C1-6 alkoxy, phenoxy, C1-6 heteroalkoxy, and at least one of E1-4 includes a B moiety, wherein B is a leaving group, OH, a residue of a hydroxyl-or amino-containing moiety or wherein J1 is the same as J, or another member of the group defining J and E5 is the same as E1-4, or another member of the group defining E1-4, Y1-2 are independently O, S or NR9; M is a heteroatom selected from either X or Q; wherein X is an electron withdrawing group and Q is a moiety containing a free electron pair positioned three to six atoms from C(═Y2); R2-5 and R7-9 are independently selected fro
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: October 28, 2003
    Assignee: Enzon, Inc.
    Inventors: Anthony J. Martinez, Annapurna Pendri, Richard B. Greenwald, Yun H. Choe
  • Publication number: 20020103259
    Abstract: The present invention is directed to polymeric-prodrug transport forms of the formula: 1 2
    Type: Application
    Filed: February 6, 2002
    Publication date: August 1, 2002
    Inventors: Anthony J. Martinez, Annapurna Pendri, Richard B. Greenwald, Yun H. Choe
  • Patent number: 6395266
    Abstract: The present invention is directed to polymeric-prodrug transport forms of the formula: wherein: E1-4 are independently selected from the group consisting of hydrogen, C1-6 alkyls, C3-12 branched alkyls, C3-8 cycloalkyls, C1-6 substituted alkyls, C3-8 substituted cycloalkyls, aryls, substituted aryls, aralkyls, C1-6 heteroalkyls, substituted C1-6 heteroalkyls, C1-6 alkoxy, phenoxy, C1-6 heteroalkoxy, and at least one of E1-4 includes a B moiety, wherein B is a leaving group, OH, a residue of a hydroxyl-or amino-containing moiety or wherein J1 is the same as J, or another member of the group defining J and E5 is the same as E1-4, or another member of the group defining E1-4; Y1-2 are independently O, S or NR9; M is a heteroatom selected from either X or Q; wherein X is an electron withdrawing group and Q is a moiety containing a free electron pair positioned three to six atoms from C(=Y2); R2-5 and R7-9 are independently selected
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: May 28, 2002
    Assignee: Enzon, Inc.
    Inventors: Anthony J. Martinez, Annapurna Pendri, Richard B. Greenwald, Yun H. Choe
  • Patent number: 6303569
    Abstract: The present invention is directed to double prodrugs containing polymeric-based transport forms.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: October 16, 2001
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Yun H. Choe, Annapurna Pendri
  • Patent number: 6251382
    Abstract: Polymeric compounds of the formula: (D)n—M—(R1)m  (I) wherein (m) and (n) independently selected positive integers, preferably from about 1 to about 6 each; D is a residue of a biologically active moiety; M is a multifunctional linker/spacer moiety; and R1 is a polymer residue are disclosed. Methods of preparing the same and methods of treatment using the same are also included as part of the present invention.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: June 26, 2001
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Anthony J. Martinez, Yun H. Choe, Annapurna Pendri
  • Patent number: 6214330
    Abstract: The present invention is directed to double prodrugs containing polymeric-based transport forms.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: April 10, 2001
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Yun H. Choc, Annapurna Pendri
  • Patent number: 6194580
    Abstract: The present invention is directed to methods of forming esters of tertiary alcohols. The methods include reacting a compound containing a tertiary alcohol with an acyl heteroaromatic ion-based compound of the formula: wherein R1 is an aromatic or aliphatic acid residue; Y is O or S; Z is CR2 or N; X is selected from the group consisting of wherein R2 and R3 are independently selected from the group consisting of H, C1-6 alkyls, C1-6 substituted alkyls, C1-6 heteroalkyls, C3-8 branched alkyls, C3-8 cycloalkyls, C1-6 substituted heteroalkyls, aryls, substituted aryls, C1-6 alkyl aralkyls, C1-6 heteroalkyl aralkyls, C3-8 branched alkyl aralkyls and C3-8 cycloalkyl aralkyls; and R2′ is the same as R2 except that R2′ is not H; in the presence of a lanthanideIII metal-based catalyst and a base.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: February 27, 2001
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Annapurna Pendri, Hong Zhao
  • Patent number: 6180095
    Abstract: The present invention is directed to double prodrugs containing polymeric-based transport forms.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: January 30, 2001
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Annapurna Pendri, Yun H. Choe