Patents by Inventor Srivari Chandrasekhar

Srivari Chandrasekhar 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: 11932654
    Abstract: The present invention relates to nimbolide analogs useful as anti-cancer agents and preparation thereof. Particularly the present invention relates to nimbolide analogs of general formula I. wherein, ring M is any ring selected from the group consisting of substituted or unsubstituted aryl, heteroaryl, cycloalkyl and heterocyclic; A and B are selected from the group consisting of C, O, N, S and H; R1, R2, R3, R4, R5 and R6 are selected from the group consisting of C1-C6 alkyl, aryl, heteroaryl, C1-C7 cycloalkyl, heteroalkyl, hydrogen, hydroxy, alkoxy, nitro, halogen, amino, alkylamino, aryl amino and cyano; wherein each of these groups may be further substituted with one or more substituents selected from the group consisting of hydrogen, hydroxy, halogen, cyano, alkyl amino, aryl amino, alkoxy, amino, nitro, aldehyde, carboxylic acid and ester.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 19, 2024
    Assignee: Council of Scientific & Industrial Research
    Inventors: Srivari Chandrasekhar, Prathama Satyendra Mainkar, Karre Nagaraju, Togapur Pavan Kumar, Ummanni Ramesh, Kanchanapally Tejaswini, Jerald Mahesh Kumar, Katragadda Suresh Babu, Boggavarapu Subrahmanya Sastry, Debabrata Mukhopadhyay
  • Publication number: 20230321038
    Abstract: The present invention relates to compound of Formula 1 for use in treating IPF, by reducing collagen deposition in lungs, attenuating the fibrotic marker's expression (in IPF cell-lines Bleomycin induced rat lungs) and improving the bleomycin induced pathological changes in rat lungs, and ARDS, by reducing the cytokine storm. The invention also relates to compound of Formula 1 for use in treating various fibrotic disorders like lung injuries caused by virus or bacterial infections, cardiac, hepatic and kidney fibrosis.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 12, 2023
    Inventors: Srivari CHANDRASEKHAR, Prathama S MAINKAR, Chada RAJI REDDY, Sistla RAMAKRISHNA, Andugulapati SAI BALAGI, Kuncha MADHUSUDANA, Muppidi MOHAN VENKATA SUBBARAO, Tirunavalli SATYA KRISHNA
  • Publication number: 20220333139
    Abstract: The present invention relates to an enzymatic process for preparation of optically pure enantiomers of homopropargylic alcohol compounds of formula I, which are useful intermediates for the synthesis of Halichondrin B and analogs. wherein, P is H or an alcohol protecting group, n is an integer ranging from 0-12.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 20, 2022
    Applicant: Council of Scientific and Industrial Research
    Inventors: Srivari CHANDRASEKHAR, Subhash GHOSH, Avula Shiva KRISHNA, Chada Raji REDDY, Gangarajula SUDHAKAR, Kumaraguru THENKRISHNAN, Srihari PABBARAJA, Prathama Satyendra MAINKAR, Rajesh NASAM
  • Patent number: 11306100
    Abstract: The present invention provides a compound of general formulae I useful as GSK3? inhibitors and their anticancer potential and process for preparation of these spirooxindoles. wherein Z is hydrogen, halogen, hydroxy, alkoxy, cyano, nitro; Ring A is a five membered or six membered or seven membered optionally containing additional hetero atom in the ring X is optionally CH2 Ring B is triazole or cyclic amine alone or with one or more hetero atoms part of the ring and optionally substituted with one or more substituents Y is hydrogen, alkoxy, aryloxy, hydroxy, ester, amide, amino, alkyl or aryl, heteroaryl, wherein these substituents are optionally substituted with one or more halogen, hydroxy, alkoxy, alkyl, aryl, heteroaryl, aryloxy, nitro, cyano, ester, aldehyde, wherein these substituents are further substituted with one or more halogen, hydroxy, alkoxy, alkyl, aryl, heteroaryl, aryloxy, nitro, cyano, ester, aldehyde.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 19, 2022
    Inventors: Prathama S. Mainkar, Mohammad Abdul Sattar, Pitchakuntla Mallesham, Togapur Pavan Kumar, Divya Duscharla, Ummanni Ramesh, Srivari Chandrasekhar
  • Publication number: 20210284650
    Abstract: The present invention provides a compound of general formulae I useful as GSK3? inhibitors and their anticancer potential and process for preparation of these spirooxindoles. wherein Z is hydrogen, halogen, hydroxy, alkoxy, cyano, nitro; Ring A is a five membered or six membered or seven membered optionally containing additional hetero atom in the ring X is optionally CH2 Ring B is triazole or cyclic amine alone or with one or more hetero atoms part of the ring and optionally substituted with one or more substituents Y is hydrogen, alkoxy, aryloxy, hydroxy, ester, amide, amino, alkyl or aryl, heteroaryl, wherein these substituents are optionally substituted with one or more halogen, hydroxy, alkoxy, alkyl, aryl, heteroaryl, aryloxy, nitro, cyano, ester, aldehyde, wherein these substituents are further substituted with one or more halogen, hydroxy, alkoxy, alkyl, aryl, heteroaryl, aryloxy, nitro, cyano, ester, aldehyde.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 16, 2021
    Inventors: Prathama S. MAINKAR, Mohammad Abdul SATTAR, Pitchakuntla MALLESHAM, Togapur Pavan KUMAR, Divya DUSCHARLA, Ummanni RAMESH, Srivari CHANDRASEKHAR
  • Publication number: 20210171538
    Abstract: The present invention relates to nimbolide analogs useful as anti-cancer agents and preparation thereof. Particularly the present invention relates to nimbolide analogs of general formula I. wherein, ring M is any ring selected from the group consisting of substituted or unsubstituted aryl, heteroaryl, cycloalkyl and heterocyclic; A and B are selected from the group consisting of C, O, N, S and H; R1, R2, R3, R4, R5 and R6 are selected from the group consisting of C1-C6 alkyl, aryl, heteroaryl, C1-C7 cycloalkyl, heteroalkyl, hydrogen, hydroxy, alkoxy, nitro, halogen, amino, alkylamino, aryl amino and cyano; wherein each of these groups may be further substituted with one or more substituents selected from the group consisting of hydrogen, hydroxy, halogen, cyano, alkyl amino, aryl amino, alkoxy, amino, nitro, aldehyde, carboxylic acid and ester.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 10, 2021
    Applicant: Council of Scientific & Industrial Research
    Inventors: Srivari Chandrasekhar, Prathama Satyendra Mainkar, Karre Nagaraju, Togapur Pavan Kumar, Ummanni Ramesh, Kanchanapally Tejaswini, Jerald Mahesh Kumar, Katragadda Suresh Babu, Boggavarapu Subrahmanya Sastry, Debabrata Mukhopadhyay
  • Patent number: 10947249
    Abstract: The present invention relates to nimbolide analogs useful as anti-cancer agents and preparation thereof. Particularly the present invention relates to nimbolide analogs of general formula I. wherein, ring M is any ring selected from the group consisting of substituted or unsubstituted aryl, heteroaryl, cycloalkyl and heterocyclic; A and B are selected from the group consisting of C, O, N, S and H; R1, R2, R3, R4, R5 and R6 are selected from the group consisting of C1-C6 alkyl, aryl, heteroaryl, C1-C7 cycloalkyl, heteroalkyl, hydrogen, hydroxy, alkoxy, nitro, halogen, amino, alkylamino, aryl amino and cyano; wherein each of these groups may be further substituted with one or more substituents selected from the group consisting of hydrogen, hydroxy, halogen, cyano, alkyl amino, aryl amino, alkoxy, amino, nitro, aldehyde, carboxylic acid and ester.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 16, 2021
    Inventors: Srivari Chandrasekhar, Prathama Satyendra Mainkar, Karre Nagaraju, Togapur Pavan Kumar, Ummanni Ramesh, Kanchanapally Tejaswini, Jerald Mahesh Kumar, Katragadda Suresh Babu, Boggavarapu Subrahmanya Sastry, Debabrata Mukhopadhyay
  • Patent number: 10421739
    Abstract: The present invention relates to a process for the preparation of racemic nicotine from 3-pyridylaldehyde using a one-pot or step-wise method. The process comprises the following steps: Stetter reaction, reduction-cyclization and methylation.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 24, 2019
    Assignee: Council of Scientific & Industrial Research
    Inventors: Prathama Satyendra Mainkar, Kondepudi Sugnana Sunder, Togapur Pavan Kumar, Srivari Chandrasekhar
  • Publication number: 20190211027
    Abstract: The present invention relates to nimbolide analogs useful as anti-cancer agents and preparation thereof. Particularly the present invention relates to nimbolide analogs of general formula I. wherein, ring M is any ring selected from the group consisting of substituted or unsubstituted aryl, heteroaryl, cycloalkyl and heterocyclic; A and B are selected from the group consisting of C, O, N, S and H; R1, R2, R3, R4, R5 and R6 are selected from the group consisting of C1-C6 alkyl, aryl, heteroaryl, C1-C7 cycloalkyl, heteroalkyl, hydrogen, hydroxy, alkoxy, nitro, halogen, amino, alkylamino, aryl amino and cyano; wherein each of these groups may be further substituted with one or more substituents selected from the group consisting of hydrogen, hydroxy, halogen, cyano, alkyl amino, aryl amino, alkoxy, amino, nitro, aldehyde, carboxylic acid and ester.
    Type: Application
    Filed: October 26, 2018
    Publication date: July 11, 2019
    Applicant: Council of Scientific & Industrial Research
    Inventors: Srivari Chandrasekhar, Prathama Satyendra Mainkar, Karre Nagaraju, Togapur Pavan Kumar, Ummanni Ramesh, Kanchanapally Tejaswini, Jerald Mahesh Kumar, Katragadda Suresh Babu, Boggavarapu Subrahmanya Sastry, Debabrata Mukhopadhyay
  • Publication number: 20190016699
    Abstract: The present invention relates to a process for the preparation of racemic nicotine from 3-pyridylaldehyde using a one-pot or step-wise method. The process comprises the following steps: Stetter reaction, reduction-cyclisation and methylation.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 17, 2019
    Applicant: Council of Scientific & Industrial Research
    Inventors: Prathama Satyendra Mainkar, Kondepudi Sugnana Sunder, Togapur Pavan Kumar, Srivari Chandrasekhar
  • Patent number: 7179937
    Abstract: The invention relates to the use of derivatives of cyclopentenone for the inhibition or prevention of the growth or multiplication of cancer cells, and to therapeutic compositions containing such compounds. The invention relates more specifically to the use of derivatives of cyclopentenone for the inhibition and/or prevention of cancer of the colon, pancreas, larynx, ovary, duodenum, kidney, oral cavity, prostate, lung, endothelial cells and leukemias.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: February 20, 2007
    Assignee: Dabur Research Foundation
    Inventors: Mukund K. Gurjar, Radhika D. Wakharkar, Gautam R. Desiraju, Ashwini Nangia, Jhillu Singh Yadav, Anand C. Burman, Rama Mukherjee, Hanumant Bapu Rao Borate, Srivari Chandrasekhar, Manu Jaggi, Anuo T. Singh, Kamal Kapoor, Sanjay Sarkhel, K. V. V. M. Sairam
  • Publication number: 20030229146
    Abstract: The invention relates to the use of derivatives of cyclopentenone for the inhibition or prevention of the growth or multiplication of cancer cells, and to therapeutic compositions containing such compounds.
    Type: Application
    Filed: December 4, 2002
    Publication date: December 11, 2003
    Applicant: DABUR RESEARCH FOUNDATION
    Inventors: Mukund K. Gurjar, Radhika D. Wakharkar, Gautam R. Desiraju, Ashwini Nangia, J. S. Yadav, Anand C. Burman, Rama Mukherjee, Hanumant Bapurao Borate, Srivari Chandrasekhar, Manu Jaggi, Anuo T. Singh, Kamal K. Kapoor, Sanjay Sarkhel, Kalapatapu V.V.M. Sairam