Patents by Inventor Apparao Satyam

Apparao Satyam 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: 20120065149
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Patent number: 8105568
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 31, 2012
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna R. Santhapuram, Apparao Satyam, Joseph A. Reddy
  • Publication number: 20110274695
    Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 10, 2011
    Inventor: Apparao SATYAM
  • Publication number: 20110269722
    Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 3, 2011
    Inventor: Apparao Satyam
  • Publication number: 20110269709
    Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 3, 2011
    Inventor: Apparao Satyam
  • Publication number: 20110263526
    Abstract: The present invention relates to nitric oxide releasing prodrugs of known drugs or therapeutic agents which are represented herein as compounds of formula (I) wherein the drugs or therapeutic agents contain one or more functional groups independently selected from a carboxylic acid, an amino, a hydroxyl and a sulfhydryl group. The invention also relates to processes for the preparation of the nitric oxide releasing prodrugs (the compounds of formula (I)), to pharmaceutical compositions containing them and to methods of using the prodrugs.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 27, 2011
    Applicant: PIRAMAL LIFE SCIENCES LIMITED
    Inventor: Apparao SATYAM
  • Patent number: 7932294
    Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: April 26, 2011
    Assignees: Apparao Satyam, Piramal Life Sciences Limited
    Inventor: Apparao Satyam
  • Publication number: 20100004276
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 7, 2010
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Patent number: 7601332
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: October 13, 2009
    Assignee: Endocyte, Inc.
    Inventors: Iontcho R. Vlahov, Christopher P. Leamon, Matthew A. Parker, Stephen J. Howard, Hari Krishna Santhapuram, Apparao Satyam, Joseph Anand Reddy
  • Publication number: 20090203889
    Abstract: Bivalent linkers derived from compounds of formulae (V), (VI), and (VII), where X1 and X2 are leaving groups and the other variables are as defined in the claims, to be included in or for preparing vitamin, drug, diagnostic agent, and/or imaging agent conjugates are described.
    Type: Application
    Filed: July 22, 2005
    Publication date: August 13, 2009
    Applicant: ENDOCYTE, INC.
    Inventors: Iontcho Radoslavov Vlahov, Christopher Paul Leamon, Apparao Satyam, Stephen J. Howard
  • Publication number: 20060205674
    Abstract: Abstract of the Disclosure The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one or more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Application
    Filed: August 26, 2005
    Publication date: September 14, 2006
    Applicant: Nicholas Piramal India Ltd.
    Inventor: Apparao Satyam
  • Publication number: 20060046967
    Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 2, 2006
    Inventor: Apparao Satyam
  • Publication number: 20050002942
    Abstract: The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.
    Type: Application
    Filed: January 27, 2004
    Publication date: January 6, 2005
    Inventors: Iontcho Vlahov, Christopher Leamon, Matthew Parker, Stephen Howard, Hari Santhapuram, Apparao Satyam, Joseph Reddy
  • Publication number: 20030078188
    Abstract: Methods to identify compounds which have at least one characteristic selected from the group consisting of a composition that
    Type: Application
    Filed: October 25, 2001
    Publication date: April 24, 2003
    Inventors: Lawrence M. Kauvar, Richard Sportsman, Hugo O. Villar, Wayne R. Spevak, Ron A. Kohanski, Apparao Satyam, Ryan Koehler
  • Publication number: 20020016367
    Abstract: Modulation of the activity of the insulin receptor, enhancement of glucose uptake by cells, and other effects significant in the control and management of diabetes are accomplished using compounds of the formula 1
    Type: Application
    Filed: September 21, 2001
    Publication date: February 7, 2002
    Inventors: Richard Sportsman, Hugo O. Villar, Lawrence M. Kauvar, Apparao Satyam
  • Patent number: 6329431
    Abstract: Modulation of the activity of the insulin receptor, enhancement of glucose uptake by cells, and other effects significant in the control and management of diabetes are accomplished using compounds of the formula wherein each A is independently a proton-accepting substituent; each R is independently a noninterfering substituent; m is 0 or 1; n is 0, 1, or 2; and each linker is independently —NHCNHNH—, —NHCOO—, OCOO—,—CH═CH—, —CH═N—, —CH2CH2—, —NHCH2—, —OCO— or —COO—. Compounds in the genus of Formula (1) can also be used for structure activity studies to identify features responsible for the relevant activities.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: December 11, 2001
    Assignee: Telik, Inc.
    Inventors: Richard Sportsman, Hugo O. Villar, Lawrence M. Kauvar, Apparao Satyam
  • Patent number: 5908919
    Abstract: Compounds of the formula ##STR1## or of the formula ##STR2## or the amides, esters or salts thereof, wherein: S.sup.x is S.dbd.O, O.dbd.S.dbd.O, S.dbd.NH, HN.dbd.S.dbd.O, Se.dbd.O, O.dbd.Se.dbd.O, Se.dbd.NH, HN.dbd.Se.dbd.O, S.sup.+ R.sup.3 wherein R.sup.3 is alkyl (1-6C) or O--C.dbd.O or HN--C.dbd.O;each R of R.sup.1, and R.sup.2 is independently H or a noninterfering substituent;wherein (conj) represents a conjugated system capable of transmitting electrons;n is 0 or 1;YCO is selected from the group consisting of .gamma.-Glu, .gamma.-Glu-Gly, Glu, Glu-Gly, .beta.Asp, .beta.-Asp-Gly, Asp and Asp-Gly;AA.sub.C is an amino acid linked through a peptide bond to the remainder of said compound of Formula 1; andN(Z) represents a reduced nitrogen-containing leaving group and L represents an electron-withdrawing leaving group,are useful as prodrugs and to generate active components released by the activity of glutathione S-transferase.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 1, 1999
    Assignee: Terrapin Technologies
    Inventors: Lawrence M. Kauvar, Matthew H. Lyttle, Apparao Satyam
  • Patent number: 5556942
    Abstract: Compounds of the formula: ##STR1## or the amides, esters or salts thereof, wherein: L is an electron withdrawing leaving group;S.sup.x is S.dbd.O, O.dbd.S.dbd.O, S.dbd.NH, HN.dbd.S.dbd.O, Se.dbd.O, O.dbd.Se.dbd.O, Se.dbd.NH, HN.dbd.Se.dbd.O, S.sup.+ R.sup.4 wherein R.sup.4 is alkyl (1-6C), or O--C.dbd.O or HN--C.dbd.O;each R of R.sup.1, R.sup.2 and R.sup.3 is independently H or a noninterfering substituent;n is 0, 1 or 2;Y is selected from the group consisting of ##STR2## wherein m is 1 or 2; and AA.sub.C is an amino acid linked through a peptide bond to the remainder of said compound of formula 1, are disclosed.These compounds are useful prodrugs for selective treatment of target tissues which contain compatible glutathione S-transferase (GST) isoenzymes, and simultaneously elevate the levels of GM progenitor cells in bone marrow.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 17, 1996
    Assignee: Terrapin Technologies, Inc.
    Inventors: Lawrence M. Kauvar, Matthew H. Lyttle, Apparao Satyam
  • Patent number: 5545621
    Abstract: Compounds of the formula: ##STR1## or the amides, esters or salts thereof, wherein: L is an electron withdrawing leaving group;S.sup.x is S=O, O=S=O, S=NH, HN=S=O, Se=O, O=Se=O, Se=NH, HN=Se=O, S+R.sup.4 wherein R.sup.4 is alkyl (1-6 C), or O--C=O or HN--C=O;each R of R.sup.1, R.sup.2 and R.sup.3 is independently H or a noninterfering substituent;n is 0, 1 or 2;Y is selected from the group consisting of ##STR2## wherein m is 1 or 2; and AA.sub.C is an amino acid linked through a peptide bond to the remainder of said compound of formula 1, are dislosed.These compounds are useful prodrugs for selective treatment of target tissues which contain compatible glutathione S-transferase (GST) isoenzymes.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: August 13, 1996
    Assignee: Terrapin Technologies, Inc.
    Inventors: Lawrence M. Kauvar, Matthew H. Lyttle, Apparao Satyam
  • Patent number: 5254664
    Abstract: A reaction of the compound (A) having at least two 2-oxazoline groups with the compound (B) having at least two functional groups of one or a plural kind selected from the group consisting of an aromatic hydroxyl group, an amino group and a thiol group proceeds in a short period of time to produce a cured resin with superior mechanical strength, heat resistance and adhesion properties.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: October 19, 1993
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Subhash C. Narang, Asutosh Nigam, Apparao Satyam, Susanna C. Ventura, Yoshihiro Arita