Patents by Inventor Chandishwar Nath

Chandishwar Nath 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: 8946261
    Abstract: The present invention relates to novel substituted 1,2,3,4-tetrahydroquinolin-7-yl carbamates, their preparation, and use as therapeutic agents, particularly in the prevention or treatment of neurodegenerative or Alzheimer's disease, or senile dementia, or memory disturbances, and more particularly to the prevention, treatment and amelioration of Alzheimer's disease with the novel substituted 1,2,3,4-tetrahydroquinolin-7-yl carbamates, which act as inhibitors of central cholinesterase enzymes, particularly acetylcholinesterase (AChE) following the indirect cholinomimetic pathway. The present invention particularly relates to compounds of formula A: Formula A wherein R1=alkyl, aryl, substituted aryl; R2=H, methyl; R3=H, alkyl, alkenyl, alkynyl, aralkyl, substituted aralkyl, aryl, heteroaryl.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: February 3, 2015
    Assignee: Council of Scientific & Industrial Research
    Inventors: Kuldeep Kumar Roy, Santoshkumar Tota, Chandishwar Nath, Rakesh Shukla, Anil Kumar Saxena
  • Publication number: 20130324573
    Abstract: The present invention relates to novel substituted 1,2,3,4-tetrahydroquinolin-7-yl carbamates, their preparation, and use as therapeutic agents, particularly in the prevention or treatment of neurodegenerative or Alzheimer's disease, or senile dementia, or memory disturbances, and more particularly to the prevention, treatment and amelioration of Alzheimer's disease with the novel substituted 1,2,3,4-tetrahydroquinolin-7-yl carbamates, which act as inhibitors of central cholinesterase enzymes, particularly acetylcholinesterase (AChE) following the indirect cholinomimetic pathway. The present invention particularly relates to compounds of formula A: Formula A wherein R1=alkyl, aryl, substituted aryl; R2?H, methyl; R3?H, alkyl, alkenyl, alkynyl, aralkyl, substituted aralkyl, aryl, heteroaryl.
    Type: Application
    Filed: January 24, 2012
    Publication date: December 5, 2013
    Applicant: Council of Scientific & Industrial Research
    Inventors: Kuldeep Kumar Roy, Santoshkumar Tota, Chandishwar Nath, Rakesh Shukla, Anil Kumar Saxena
  • Publication number: 20110077294
    Abstract: The present invention provides an optically active compound of general formula (I) and salts thereof: wherein R? is selected from a group consisting of t-butyl amine, n-butylamine, iso-butylamine, iso-propyl amine, 4-phenyl-piperazine-1-ylamine, 4-(2-methoxyphenyl)-piperazin-1-ylamine, and 3,4-dimethoxy phenethyl amine; wherein R1, R2 and R3 are selected from the group consisting of hydrogen, methyl or iso pentenyl; R4, R5 and R6 are selected from the group consisting of Oil, O-alkyl, O-benzyl, O-substituted phenyl or combination thereof.
    Type: Application
    Filed: August 2, 2007
    Publication date: March 31, 2011
    Inventors: Ram Pratap, Himanshu Singh, Alok Kumar Verma, Amar Bahadur Singh, Priti Priti Tiwari Tiwari, Mukesh Srivastava, Arvind Kumar Srivastava, Anil Kumar Dwivedi, Satyawan Singh, Pratima Pnahma Svivastva Srivastava, Shio Kumar Singh, Chandishwar Nath, Ram Raghubir
  • Patent number: 7655801
    Abstract: The present invention relates to new substituted carbamic acid quinoline-6-yl esters of formulae 1 and 2 where R1=alkyl, aryl; R2=H, alkyl, aralkyl useful as acetylcholinesterase inhibitors, and which show potent antiacetylcholinesterase activity and have potential therapeutic use for prevention or cure of acetylcholinesterase related disorders including peripheral as well as central nervous system.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: February 2, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Neeraj Shakya, Zeeshan Fatima, Chandishwar Nath, Anil Kumar Saxena
  • Publication number: 20060142335
    Abstract: The present invention relates to new substituted carbamic acid quinoline-6-yl esters of formulae 1 and 2 where R1=alkyl, aryl; R2=H, alkyl, aralkyl useful as acetylcholinesterase inhibitors, and which show potent antiacetylcholinesterase activity and have potential therapeutic use for prevention or cure of acetylcholinesterase related disorders including peripheral as well as central nervous system.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Inventors: Neeraj Shakya, Zeeshan Fatima, Chandishwar Nath, Anil Saxena