Patents by Inventor Panolil Raveendranath

Panolil Raveendranath 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: 20070015791
    Abstract: Selective dual serotonin and norepinephrine reuptake inhibitors are provided. These compounds have a lower side-effect profile and are useful in compositions and products for use in treatment of a variety of conditions including depression, fibromyalgia, anxiety, panic disorder, agorophobia, post traumatic stress disorder, premenstrual dysphoric disorder, attention deficit disorder, obsessive compulsive disorder, social anxiety disorder, generalized anxiety disorder, autism, schizophrenia, obesity, anorexia nervosa, bulimia nervosa, Gilles de la Tourette Syndrome, vasomotor flushing, cocaine and alcohol addiction, sexual dysfunction, borderline personality disorder, fibromyalgia syndrome, diabetic neuropathic pain, chronic fatigue syndrome, pain, Shy Drager syndrome, Raynaud's syndrome, Parkinson's Disease, and epilepsy.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 18, 2007
    Applicant: Wyeth
    Inventors: Syed Shah, Mahdi Fawzi, Panolil Raveendranath, Eric Ehrnsperger
  • Publication number: 20070015824
    Abstract: Selective dual serotonin and norepinephrine reuptake inhibitors are provided. These compounds have a lower side-effect profile and are useful in compositions and products for use in treatment of a variety of conditions including depression, fibromyalgia, anxiety, panic disorder, agoraphobia, post traumatic stress disorder, premenstrual dysphoric disorder, attention deficit disorder, obsessive compulsive disorder, social anxiety disorder, generalized anxiety disorder, autism, schizophrenia, obesity, anorexia nervosa, bulimia nervosa, Gilles de la Tourette Syndrome, vasomotor flushing, cocaine and alcohol addiction, sexual dysfunction, borderline personality disorder, fibromyalgia syndrome, diabetic neuropathic pain, chronic fatigue syndrome, pain, Shy Drager syndrome, Raynaud's syndrome, Parkinson's Disease, and epilepsy.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 18, 2007
    Applicant: Wyeth
    Inventors: Syed Shah, Mahdi Fawzi, Eric Ehrnsperger, Panolil Raveendranath
  • Publication number: 20060247442
    Abstract: Methods and kits for preventing or minimizing the formation of isatin oximes during formation of an isatin from an isonitrosoacetanilide are provided. Also provided are methods and kits for preventing or minimizing the formation of isatin oxime impurities after formation of an isatin from an isonitrosoacetanilide by using a decoy agent in the quenching and/or extraction steps. The isatins can be prepared using a decoy agent and desirably a strong acid. Further provided are methods for preparing isatin oximes.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Panolil Raveendranath, Zhixian Ding, Peter Wehrenberg
  • Publication number: 20060041005
    Abstract: The present invention provides method for making a compound of formula 1: comprising the steps of reacting compounds of formulas 2 and 3: to produce a compound of formula 4: wherein R1, R2, R3, R4 and R5 are defined as described herein. The compound of formula 4 is then converted to the compound of formula 1. The invention further comprises compounds of formulas 3 and 4 and methods for making compounds of formulas 3 and 4.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 23, 2006
    Applicant: Wyeth
    Inventors: Ronald Michalak, Mahmut Levent, Frederick Vyverberg, Ara Boyajian, Panolil Raveendranath, Michel Cantin, Alan Stockton, Michael Winkley, Mousumi Ghosh, Christoph Dehnhardt, Charles Guinosso
  • Publication number: 20060014973
    Abstract: The present invention provides processes for the preparation of 16?-alkoxy, 17?-hydroxy steroids via the reaction of a 16?,17?-epoxy steroid with an appropriate alcohol in the presence of base. The present invention also provides processes for the preparation of 16?-alkoxy, 17?-hydroxy steroids.
    Type: Application
    Filed: July 15, 2005
    Publication date: January 19, 2006
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Sreenivasulu Megati, Charles Wu, Jianxin Ren, Panolil Raveendranath
  • Publication number: 20050288268
    Abstract: This invention relates to a process for the preparation of 6-hydroxyequilenins, which are useful as estrogenic agents.
    Type: Application
    Filed: August 22, 2005
    Publication date: December 29, 2005
    Applicant: Wyeth
    Inventors: Sreenivasulu Megati, Galina Vid, Arthur Mohan, Panolil Raveendranath, John Potoski
  • Publication number: 20050234086
    Abstract: Methods for the synthesis of CCI-779 and proline-CCI-779 are described, including a method involving lipase-catalyzed acetylation of 42-hydroxy of rapamycin with a vinyl ester of 2,2-bis(hydroxymethyl) propionic acid in an organic solvent followed by deprotection. Also provided are products containing proline-CCI-779 and uses thereof.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 20, 2005
    Applicant: Wyeth
    Inventors: Jianxin Gu, Mark Ruppen, Panolil Raveendranath, Warren Chew, Chia-Cheng Shaw
  • Patent number: 6956126
    Abstract: This invention relates to a process for the preparation of 6-hydroxyequilenins, which are useful as estrogenic agents.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: October 18, 2005
    Assignee: Wyeth
    Inventors: Sreenivasulu Megati, Galina Vid, Arthur Mohan, Panolil Raveendranath, John Potoski
  • Patent number: 6951955
    Abstract: The invention is a process for the preparation of compounds of the Formula I: where R1, R2, R3, R4 and R5 are defined in the specification, which are intermediates useful for the preparation of tubulin inhibitors which are useful in the treatment of cancer.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: October 4, 2005
    Assignee: Wyeth Holdings Corporation
    Inventors: Yanzhong Wu, Sreenivasulu Megati, Constantine Gletsos, John Thomas Kendall, Bogdan Kazimierz Wilk, Thurairajah Padmanathan, Panolil Raveendranath
  • Publication number: 20050159613
    Abstract: A process for making a compound of formula (I) in which process the compound HC?C—(CH2)n—NH2 is reacted with the compound R1—SO2Cl to produce an intermediate compound, which intermediate compound is then reacted with the compound of formula to produce the compound of formula (I), and compounds produced by the process of this invention. The terms R1, R2, R3, R4 and n have the definitions set forth in the specification.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 21, 2005
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Panolil Raveendranath
  • Publication number: 20050148770
    Abstract: A process for the reductive alkylation at the C-3 position of an indole compound in which the indole is treated with an aldehyde in the presence of a Lewis acid and a silicon hydride reducing agent. The process is useful for alkylating the C-3 position of indoles that contain acid-sensitive substituents at the N-1 position.
    Type: Application
    Filed: December 16, 2004
    Publication date: July 7, 2005
    Applicant: Wyeth
    Inventors: Ronald Michalak, Panolil Raveendranath
  • Publication number: 20050107618
    Abstract: The present invention describes a process for preparing N-substituted phthalimides of Formula I which are widely useful as intermediates in the preparation of organic compounds such as pharmaceuticals.
    Type: Application
    Filed: November 16, 2004
    Publication date: May 19, 2005
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Panolil Raveendranath
  • Patent number: 6891065
    Abstract: A process for making a compound of formula (I) in which process the compound HC?C—(CH2)n—NH2 is reacted with the compound R1—SO2Cl to produce an intermediate compound, which intermediate compound is then reacted with the compound of formula to produce the compound of formula (I), and compounds produced by the process of this invention. The terms R1, R2, R3, R4 and n have the definitions set forth in the specification.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: May 10, 2005
    Assignee: Wyeth
    Inventors: Yanzhong Wu, Panolil Raveendranath
  • Publication number: 20050070723
    Abstract: A process for making a substituted indole compound, including the steps of: reacting the compounds in a non-protic polar solvent in the presence of a catalyst to form the intermediate compound wherein Ph and X are as defined herein; and then, heating this intermediate compound in the solvent in the presence of the catalyst to form the substituted indole compound The invention also includes compounds formed by this process.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 31, 2005
    Applicant: Wyeth Holdings Corporation
    Inventors: Christoph Dehnhardt, Sreenivasulu Megati, Ronald Michalak, Panolil Raveendranath
  • Publication number: 20050054870
    Abstract: A process for making a compound of formula I and intermediate compounds thereof, wherein R1 is CN, F or Cl; R2 is H or Br; and R3 and R4 are each independently H or F. The compounds of formula I are useful in the treatment of chronic inflammatory diseases, such as rheumatoid arthritis.
    Type: Application
    Filed: September 1, 2004
    Publication date: March 10, 2005
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Jianxin Ren, Mousumi Ghosh, Mahmut Levent, Karen Sutherland, Panolil Raveendranath
  • Publication number: 20050049296
    Abstract: A process for making the compound of formula (I) wherein Ac represents acetate; X represents O or CH2; Y represents C1-C6alkyl; and Z is selected from the group consisting of H, halogen, CN, CHO, CF3, OCF3, OH, C1-C6alkyl, C1-C6alkoxy, C1-C6thioalkyl, NH2, N(C1-C6alkyl)2, NH(C1-C6alkyl), NC(O)-(C1-C6alkyl), and NO2. In his process, a compound of formula (II) is reacted with hydrazine to form a primary alkylamine, and then the primary alkylamine is reacted with acetic anhydride, to produce the compound of formula (I).
    Type: Application
    Filed: August 31, 2004
    Publication date: March 3, 2005
    Applicant: Wyeth
    Inventors: Christoph Dehnhardt, Sreenivasulu Megati, Ronald Michalak, Panolil Raveendranath, Jianxin Ren, Charles Wu, Yangzhong Wu
  • Publication number: 20050020858
    Abstract: A process for making a compound of formula (I) in which process the compound HC?C—(CH2)n—NH2 is reacted with the compound R1—SO2Cl to produce an intermediate compound, which intermediate compound is then reacted with the compound of formula to produce the compound of formula (I), and compounds produced by the process of this invention. The terms R1, R2, R3, R4 and n have the definitions set forth in the specification.
    Type: Application
    Filed: July 21, 2004
    Publication date: January 27, 2005
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Panolil Raveendranath
  • Patent number: 6818636
    Abstract: This invention provides 3&bgr;-hydroxy-5,7,9-estratriene-17-one and a pharmaceutically acceptable salt of its 3-sulfate ester, which is useful as an estrogen.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: November 16, 2004
    Assignee: Wyeth
    Inventors: Syed M. Shah, Panolil Raveendranath, Michael Z. Kagan
  • Patent number: 6784172
    Abstract: This invention provides processes for synthesizing compounds of formula I: wherein R is H or alkyl; R1, R2 are H, alkyl, alkoxy, halogen, fluorinated alkyl, —CN, alkyl sulfonamide, alkyl amide, amino, alkylamino, dialkylamino, fluorinated alkoxy, acyl, or aroyl; R3 and R4 are H, alkyl or cycloalkyl; the dashed line indicates an optional double bond; as well as intermediates and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: August 31, 2004
    Assignee: Wyeth
    Inventors: Annmarie Louise Sabb, Robert Lewis Vogel, Madelene Miyoko Antane, Panolil Raveendranath, Sreenivasulu Megati, Michael David Smith, James Albert Nelson
  • Publication number: 20040063904
    Abstract: The invention is a process for the preparation of compounds of the Formula I: 1
    Type: Application
    Filed: September 18, 2003
    Publication date: April 1, 2004
    Applicant: Wyeth Holdings Corporation
    Inventors: Yanzhong Wu, Sreenivasulu Megati, Constantine Gletsos, John Thomas Kendall, Bogdan Kazimierz Wilk, Thurairajah Padmanathan, Panolil Raveendranath