Patents by Inventor Maneesh Kumar Pandey

Maneesh Kumar Pandey 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: 11667654
    Abstract: The present invention relates to an improved process for the preparation of a compound of formula (I), wherein PG1 may be independently selected from tert-butyloxycarbonyl (Boc), phthaloyl, 9-fluorenylmethyloxycarbonyl (Fmoc), triphenylmethyl (Trityl), carboxybenzyl (Cbz), trifluoroacetyl, benzyl (Bn), benzylidene, methanesulfonyl (Mesyl), toluene sulfonyl (Tosyl) or acyl; its isolation as solid and use for the preparation of the compound of formula (IV), in particular the compound of formula (IV) i.e. [(1R)-3-methyl-1[[(2S)-1-oxo-3-phenyl-2-[(pyrazinylcarbonyl) amino]propyl]amino]butyl] boronic acid with more than 99.95% chiral purity, as measured by HPLC.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: June 6, 2023
    Assignee: Fresenius Kabi Oncology Ltd.
    Inventors: Maneesh Kumar Pandey, Raj Narayan Tiwari, Sonu Shukla, Sarbjot Singh Sokhi, Govind Singh, Saswata Lahiri, Walter Cabri
  • Patent number: 11440912
    Abstract: The invention relates to a process for the preparation of ribociclib of formula V or its salts. The invention provides novel crystalline forms of ribociclib succinate and ribociclib trifluoroacetate. The present invention also relates to pharmaceutical compositions comprising a crystalline form of ribociclib succinate and at least a pharmaceutically acceptable carrier. It further relates to the use of such compositions in the treatment of cancer.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 13, 2022
    Assignee: FRESENIUS KABI ONCOLOGY LTD
    Inventors: Sarbjot Singh Sokhi, Govind Singh, Saswata Lahiri, Maneesh Kumar Pandey, Raj Narayan Tiwari, Sonu Shukla, Sachin Musmade, Heena Dua, Walter Cabri
  • Patent number: 11078231
    Abstract: The present invention relates to a process for the purification of compound of formula II, wherein X may be independently selected from trifluoroacetic acid, hydrochloric acid, hydrobromic acid, p-toluene sulfonic acid and phosphoric acid; its isolation as solid and use for the preparation of carfilzomib.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: August 3, 2021
    Assignee: FRESENIUS KABI ONCOLOGY LTD
    Inventors: Walter Cabri, Saswata Lahiri, Govind Singh, Sarbjot Singh Sokhi, Maneesh Kumar Pandey, Raj Narayan Tiwari, Sonu Prasad Shukla
  • Patent number: 10253066
    Abstract: The present invention relates to a process for the purification of Carfilzomib of Formula I that reduces the level of an acetamide impurity of Formula II preferably below 0.10 wt %.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 9, 2019
    Assignee: FRESENIUS KABI ONCOLOGY LIMITED
    Inventors: Maneesh Kumar Pandey, Raj Narayan Tiwari, Sarbjot Singh Sokhi, Govind Singh, Saswata Lahiri, Walter Cabri
  • Publication number: 20180002377
    Abstract: The present invention relates to a process for the purification of Carfiizomib of Formula I that reduces the level of an acetamide impurity of Formula II preferably below 0.10 wt %. Formula I Formula II.
    Type: Application
    Filed: December 1, 2015
    Publication date: January 4, 2018
    Inventors: Maneesh Kumar Pandey, Raj Narayan Tiwari, Sarbjot Singh Sokhi, Govind Singh, Saswata Lahiri, Walter Cabri