Patents by Inventor Valentino J. Stella

Valentino J. Stella 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: 8476263
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 2, 2013
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Patent number: 8426450
    Abstract: Disclosed are compounds, compositions and methods for the prevention and/or treatment of diseases which are pathophysiologically mediated by the neurokinin (NK1) receptor.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: April 23, 2013
    Assignee: Helsinn Healthcare SA
    Inventors: Luca Fadini, Peter Manini, Claudio Pietra, Claudio Giuliano, Emanuela Lovati, Roberta Cannella, Alessio Venturini, Valentino J. Stella
  • Publication number: 20120232036
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Patent number: 8211889
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: July 3, 2012
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Thomas Sun, Valentino J. Stella
  • Patent number: 8211888
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 3, 2012
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Publication number: 20120108810
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: January 12, 2012
    Publication date: May 3, 2012
    Applicant: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Thomas Sun, Valentino J. Stella
  • Publication number: 20110319613
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: June 30, 2011
    Publication date: December 29, 2011
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Patent number: 8080544
    Abstract: Disclosed are prodrug compounds of formula (I) (wherein variables R1 and R2 are as described herein) which are analogues of an antagonist of CGRP receptors and which are useful in the treatment or prevention of diseases in which CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 20, 2011
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Ian M. Bell, Steven N. Gallicchio, Valentino J. Stella
  • Publication number: 20100298269
    Abstract: Disclosed are prodrug compounds of formula (I) (wherein variables R1 and R2 are as described herein) which are analogues of an antagonist of CGRP receptors and which are useful in the treatment or prevention of diseases in which CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
    Type: Application
    Filed: February 4, 2009
    Publication date: November 25, 2010
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Ian M. Bell, Steven N. Gallicchio, Valentino J. Stella
  • Patent number: 7625878
    Abstract: A sulfoalkyl ether-alkyl ether cyclodextrin (SAE-AE-CD) derivative is provided. The SAE-AE-CD possesses advantages over known SAE-CD and AE-CD derivatives as well as over the parent cyclodextrin by being more water soluble and less membrane disturbing. The SAE-AE-CD includes at least one sulfoalkyl ether group and at least one alkyl ether group even though the degree of substitution for the functional groups can be different. The SAE functional group can be present in molar excess over the AE functional group and vice versa. The total degree of substitution of the cyclodextrin, with respect to both functional groups, can be varied such that a minority or a majority of the hydroxyl moieties of the CD are derivatized. The SAE-AE-CD derivative can be used to solubilize compounds with insufficient water solubility. In some cases, they also stabilize compounds in solution against degradation or to solubilize degradation products formed during degradation.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: December 1, 2009
    Assignee: The University of Kansas
    Inventors: Valentino J. Stella, Serena Tongiani
  • Patent number: 7563892
    Abstract: The present disclosure provides the 2,4-pyrimidinediamine compound shown below, compositions comprising the compound, intermediates and methods for synthesizing the compound, and methods of using the compound in a variety of applications including treatment of autoimmune diseases.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: July 21, 2009
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Valentino J. Stella, Thomas Sun
  • Patent number: 7538108
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds of structural formula shown below, compositions comprising these compounds, intermediates and methods for synthesizing these compounds, and methods of using these compounds in a variety of applications including treatment of autoimmune diseases.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: May 26, 2009
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Esteban Masuda, Somasekhar Bhamidipati, Thomas Sun, Valentino J. Stella
  • Patent number: 7449458
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds of structural formula shown below, compositions comprising these compounds, intermediates and methods for synthesizing these compounds, and methods for using these compounds in a variety of applications including treatment of autoimmune diseases.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: November 11, 2008
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Somasekhar Bhamidipati, Rajinder Singh, Valentino J. Stella, Thomas Sun
  • Patent number: 7244718
    Abstract: The present invention is directed to novel water-soluble prodrugs of aliphatic or aromatic hindered hydroxyl group containing pharmaceuticals.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: July 17, 2007
    Assignee: University of Kansas
    Inventors: Valentino J. Stella, Jan J. Zygmunt, Ingrid Gunda Georg, Muhammad S. Safadi
  • Patent number: 6872838
    Abstract: The present invention is directed to novel water-soluble prodrugs of aliphatic or aromatic hindered hydroxyl group containing pharmaceuticals.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 29, 2005
    Assignee: University of Kansas
    Inventors: Valentino J. Stella, Jan J. Zygmunt, Ingrid Gunda Georg, Muhammad S. Safadi
  • Publication number: 20040029777
    Abstract: The present invention relates to taste-masked pharmaceutical oral dosage formulations comprising complexes of a drug and polylysine or polyarginine for taste-masking, to convenient taste-masked oral dosage forms comprising the complexes and to methods of masking the taste of a drug, and preventing sublimation of the drug while providing good bioavailability.
    Type: Application
    Filed: April 9, 2003
    Publication date: February 12, 2004
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Shinji Ando, Valentino J. Stella
  • Publication number: 20030176324
    Abstract: The present invention is directed to novel water-soluble prodrugs of aliphatic or aromatic hindered hydroxyl group containing pharmaceuticals.
    Type: Application
    Filed: July 29, 2002
    Publication date: September 18, 2003
    Applicant: University of Kansas
    Inventors: Valentino J. Stella, Jan J. Zygmunt, Ingrid Gunda Georg, Muhammad S. Safadi
  • Publication number: 20030119814
    Abstract: The present invention relates to novel prodrugs of pharmaceutical compounds containing one or more N—H bonds. More specifically, the present embodiment of the invention relates to prodrugs wherein sulfur-containing promoieties are attached to pharmaceutical compounds which contain one or more N—H bonds to produce prodrugs containing at least one N—S bond. These N—S bond-containing prodrugs could have optimized stability, solubility, cell membrane permeability, pharmacokinetic properties and other pharmaceutical properties over the pharmaceutical compounds from which they are formed, depending upon the nature of the promoiety. Reversion of the prodrug to the parent pharmaceutical compound occurs by the reaction of the prodrugs with thiol molecules such as cysteine, glutathione or any other thiol containing molecule.
    Type: Application
    Filed: October 16, 2002
    Publication date: June 26, 2003
    Applicant: The University of Kansas
    Inventors: Victor R. Guarino, Veranja Karunaratne, Valentino J. Stella
  • Patent number: 6451776
    Abstract: The present invention is directed to novel water-soluble prodrugs of aliphatic or aromatic hindered hydroxyl group containing pharmaceuticals.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 17, 2002
    Assignee: University of Kansas
    Inventors: Valentino J. Stella, Jan J. Zygmunt, Ingrid Gunda Georg, Muhammad S. Safadi
  • Patent number: RE38333
    Abstract: Novel compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure —OC(R2)2OC(O)X(R)a, wherein R2 independently is H, C1-C12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR3 in which R3 is C1-C12 alkyl; X is N or O; R is independently H, C1-C12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro, —O—, —N═, —NR4—, —N(R4)2— or OR3, R4 independently is —H or C1-C8 alkyl, provided that at least one R is not H; and a is 1 or 2, with the proviso that when a is 2 and X is N, (a) two R groups can be taken together to form a carbocycle or oxygen-containing heterocycle, or (b) one R additionally can be OR3.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: November 25, 2003
    Assignee: Gilead Sciences, Inc.
    Inventors: Murty N. Arimilli, Kenneth C. Cundy, Joseph P. Dougherty, Choung U. Kim, Reza Oliyai, Valentino J. Stella