Patents by Inventor Dilip J. Upadhyay

Dilip J. Upadhyay 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: 8952010
    Abstract: A compound represented by the following formula (I) or a salt thereof: wherein R represents a hydrogen atom, a hydroxy group, or a halogen atom Ar1 represents a bicyclic heterocyclic group represented by the following formula: ?and Ar2 represents a bicyclic heterocyclic group represented by the following formulae:
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: February 10, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hiroaki Inagaki, Tetsunori Fujisawa, Masao Itoh, Aki Yokomizo, Toshifumi Tsuda, Saito Higuchi, Biswajit Das, Rita Katoch, Dilip J. Upadhyay
  • Publication number: 20140187542
    Abstract: A compound represented by the following formula (I) or a salt thereof: wherein R represents a hydrogen atom, a hydroxy group, or a halogen atom Ar1 represents a bicyclic heterocyclic group represented by the following formula: and Ar2 represents a bicyclic heterocyclic group represented by the following formulae:
    Type: Application
    Filed: February 6, 2012
    Publication date: July 3, 2014
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hiroaki Inagaki, Tetsunori Fujisawa, Masao Itoh, Aki Yokomizo, Toshifumi Tsuda, Saito Higuchi, Biswajit Das, Rita Katoch, Dilip J. Upadhyay
  • Publication number: 20120108565
    Abstract: The present invention provides DNA Gyrase and/or Topo IV inhibitors of Formula (I), which can be used as antibacterial agents. Compounds disclosed herein can be used for treating or preventing conditions caused by or contributed by gram positive, gram negative and anaerobic bacteria, more particularly against, for example, Staphylococci, Streptococci, Enterococci, Haemophilus, Pseudomonus spp., Acenetobacter spp., Mvraxalla spp., Chlamydia spp., Mycoplasma spp., Legionella spp., Mycobacterium spp., Helicobacter, Clostridium spp., Bacteroides spp., Cotynebacterium, Bacillus spp., Enterobactericeae (E. coli, Klebsiella spp., Proteus spp., etc.) or any combination thereof. Also provided, are processes for preparing compounds disclosed herein, pharmaceutical compositions containing compounds disclosed herein, and methods of treating bacterial infections.
    Type: Application
    Filed: July 30, 2009
    Publication date: May 3, 2012
    Inventors: Lalima Sharma, Jitendra A. Sattigeri, Narest Kumar, Ajay Yadav, Rijwan Momim, Shahadat Ahmed, Ian A. Cliffe, Pradip Kumar Bhatnagar, Sanjay Ghosh, V. Samuel Raj, Dilip J. Upadhyay
  • Patent number: 8076370
    Abstract: Provided herein are substituted aromatic compounds, which are tRNA synthetase inhibitors, and hence can be used as antimicrobial agents. Compounds described herein can be used for the treatment or prevention of a condition caused by or contributed to by gram positive, gram negative, anaerobic bacteria or fungal organisms, more particularly against bacterium, for example, Staphylococci, Enterococci, Streptococci, Haemophilus, Moraxalla, Escherichia, Chlamydia, Mycoplasm, Legionella, Mycobacterium, Helicobacter, Clostridium, Bacteroides, Corynebacterium, Bacillus or Enterobactericeae, and fungal organisms, for example, Aspergillus, Blastomyces, Candida, Coccidiodes, Cryptococcus, Epidermophyton, Hendersonula, Histoplasma, Microsporum, Paecilomyces, Paracoccidiodes, Pneumocystis, Trichophyton, or Trichosporium. Processes for the preparation of these compounds, pharmaceutical compositions thereof, and methods of treating microbial infections are also provided.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: December 13, 2011
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Biswajit Das, Jasbir Singh Arora, Shahadat Ahmed, Anish Bandyopadhyay, Rita Katoch, Santosh Haribhau Kurhade, Sujata Rathy, Soma Ghosh, Abhijit Datta Khoje, Arti Gujrati, Dilip J. Upadhyay
  • Publication number: 20110166088
    Abstract: The present invention provides Gyrase B and/or Topoisomerase IV par E inhibitors, which can be used as antibacterial agents. Compounds disclosed herein can be used for treating or preventing conditions caused by or contributed by gram positive, gram negative and anaerobic bacteria, more particularly against, for example, Staphylococci, Streptococci, Enterococci, Haemophilus, Pseudomonas spp., Acenetobacter spp., Moraxalla spp., Chlamydia spp., Mycoplasma spp., Legionella spp., Ktycobacterium spp., Helicobacter, Clostridium spp., Bacteroides spp., Corynebacterium, Bacillus spp., Enterobactericeae,’ (E. coli, Klebsiella spp., Proteus spp., etc.) or any combination thereof. Also provided, are processes for preparing compounds disclosed herein, pharmaceutical compositions containing compounds disclosed herein, and methods of treating bacterial infections.
    Type: Application
    Filed: June 25, 2009
    Publication date: July 7, 2011
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Jitendra A. Sattigeri, Naresh Kumar, Ajay Yadav, Lalima Sharma, Ian A. Cliffe, Shibu B. Varughese, Shaikh Rizwan Shabbir, V. Samuel Raj, Dilip J. Upadhyay, Pradip K. Bhatnager
  • Publication number: 20090215764
    Abstract: Provided herein are substituted aromatic compounds, which are tRNA synthetase inhibitors, and hence can be used as antimicrobial agents. Compounds described herein can be used for the treatment or prevention of a condition caused by or contributed to by gram positive, gram negative, anaerobic bacteria or fungal organisms, more particularly against bacterium, for example, Staphylococci, Enterococci, Streptococci, Haemophilus, Moraxalla, Escherichia, Chlamydia, Mycoplasm, Legionella, Mycobacterium, Helicobacter, Clostridium, Bacteroides, Corynebacterium, Bacillus or Enterobactericeae, and fungal organisms, for example, Aspergillus, Blastomyces, Candida, Coccidiodes, Cryptococcus, Epidermophyton, Hendersonula, Histoplasma, Microsporum, Paecilomyces, Paracoccidiodes, Pneumocystis, Trichophyton, or Trichosporium. Processes for the preparation of these compounds, pharmaceutical compositions thereof, and methods of treating microbial infections are also provided.
    Type: Application
    Filed: May 3, 2006
    Publication date: August 27, 2009
    Inventors: Biswajit Das, Jasbir Singh Arora, Shahadat Ahmed, Anish Bandyopadhyay, Rita Katoch, Santosh Haribhau Kurhade, Sujata Rathy, Soma Ghosh, Abhijit Datta Khoje, Arti Gujrati, Dilip J. Upadhyay
  • Publication number: 20090130225
    Abstract: The present invention provides macrolide derivatives, which can be used as antibacterial agents. Compounds described herein can be used for treating or preventing conditions caused by or contributed to by gram-positive, gram-negative or anaerobic bacteria, more particularly against, for example, Staphylococci, Streptococci, Enterococci, Haemophilus, Moraxalla spp., Chlamydia spp., Mycoplasm, Legionella spp., Mycobacterium, Helicobacter, Clostridium, Bacteroides, Corynebacterium, Propionibeacterium, Bacillus, Enterobactericeae or any combination thereof. Also provided are processes for preparing compounds described herein, pharmaceutical compositions thereof, and methods of treating bacterial infections.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 21, 2009
    Inventors: Anjan Chakrabarti, Biswajit Das, Jitendra Sambhaji Jadhav, Dilip J. Upadhyay
  • Publication number: 20090075916
    Abstract: This invention relates to 14-membered macrolide derivatives for treating or preventing acne vulgaris and associated inflammatory conditions. Also provided herein are medicaments or pharmaceutical compositions comprising one or more 14-membered macrolide derivatives together with one or more pharmaceutically acceptable carriers, excipients, diluents or mixture thereof, and methods for treating or preventing acne vulgaris and associated inflammatory conditions.
    Type: Application
    Filed: November 22, 2006
    Publication date: March 19, 2009
    Inventors: Dilip J. Upadhyay, Anjan Chakrabarti, Biswajit Das, Radhakrishnan Gowrishankar
  • Publication number: 20090005325
    Abstract: Provided herein are ketolide derivatives, which can be used as antibacterial agents. Compounds described herein can be used for treating or preventing conditions caused by or contributed to by gram positive, gram negative or anaerobic bacteria, more particularly against, for example, Staphylococci, Streptococci, Enterococci, Haemophilus, Moraxalla spp., Chlamydia spp., Mycoplasm, Legionella spp., Mycobacterium, Helicobacter, Clostridium, Bacteroides, Corynebacterium, Bacillus, Enterobactericeae, Propionibacterium acnes or any combination thereof. Also provided are processes for preparation of compounds described herein, pharmaceutical compositions thereof, and methods of treating bacterial infections.
    Type: Application
    Filed: November 21, 2006
    Publication date: January 1, 2009
    Inventors: Biswajit Bas, Anjan Chakrabarti, Ramadass Venkataramanan, Atul Kashinath Hajare, Anish Bandyopadhyay, Rita Katoch, Gobind Singh Kapkoti, Yogash Baban Surase, Mohammad Salman, Dilip J. Upadhyay
  • Patent number: 7098219
    Abstract: Compounds are described which are efflux pump inhibitors of cellular efflux pumps of microbes. Also described are methods of preparing such compounds, methods of using such efflux pump inhibitor compounds and pharmaceutical compositions which include such compounds.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: August 29, 2006
    Assignee: Wockhart Limited
    Inventors: Noel John de Souza, Mahesh Vithalbhai Patel, Shrikant V Gupte, Dilip J Upadhyay, Milind Chintaman Shukla, Nishith C Chaturvedi, Satish B Bhawsar, Sheela Chandresekharan Nair, Mohammed A Jafri, Habil Fakhruddin Khorakiwala
  • Patent number: 6964966
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: November 15, 2005
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Shrikant V. Gupte, Dilip J. Upadhyay, Satish B. Bhawsar, Rupinder K. Beri, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Milind Chintaman Shukla, Yati Chugh, Nitin Shetty, Ravindra D. Yeole, M. Madhav Reddy
  • Patent number: 6608078
    Abstract: The present invention relates to optically pure 8-(substituted piperidino)-benzo[i,j]quinolizines, their isomers, derivatives, salts, pseudopolymorphs, polymorphs prodrugs and hydrates thereof, to processes for their preparation, and to pharmaceutical compositions comprising 8-(substituted piperidino)-benzo[i,j]quinolizines their isomers, derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof. These compounds and compositions possess potent activity in treating local and systemic infections, particularly infections caused by sensitive and resistant Gram-positive organism infections, Gram-negative organism infections, mycobacterial infections and nosocomial pathogens, and particularly those belonging to the staphylococcus, streptococcus and enterococcus groups. Methods for treating the diseases and disorders arising from the foregoing infections in humans and animals are described by administering the compounds of the invention to said humans and animals.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: August 19, 2003
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Shiv Kumar Agarwal, Shirkant V Gupte, Dilip J Upadhyay, Satish B Bhawsar, Mohammad A Jafri
  • Publication number: 20030096812
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Application
    Filed: April 23, 2002
    Publication date: May 22, 2003
    Applicant: WOCKHARDT LIMITED
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Shrikant V. Gupte, Dilip J. Upadhyay, Satish B. Bhawsar, Rupinder K. Beri, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Milind Chintaman Shukla, Yati Chugh, Nitin Shetty, Ravindra D. Yeole, M. Madhav Reddy
  • Publication number: 20020177559
    Abstract: Compounds are described which are efflux pump inhibitors of cellular efflux pumps of microbes. Also described are methods of preparing such compounds, methods of using such efflux pump inhibitor compounds and pharmaceutical compositions which include such compounds.
    Type: Application
    Filed: July 31, 2001
    Publication date: November 28, 2002
    Applicant: WOCKHARDT LIMITED
    Inventors: Noel John de Souza, Mahesh Vithalbhai Patel, Shrikant V. Gupte, Dilip J. Upadhyay, Milind Chintaman Shukla, Nishith C. Chaturvedi, Satish B. Bhawsar, Sheela Chandresekharan Nair, Mohammed A. Jafri, Habil Fakhruddin Khorakiwala
  • Publication number: 20020165227
    Abstract: The present invention relates to optically pure 8-(substituted piperidino)-benzo[i,j]quinolizines, their isomers, derivatives, salts, pseudopolymorphs, polymorphs prodrugs and hydrates thereof, to processes for their preparation, and to pharmaceutical compositions comprising 8-(substituted piperidino)-benzo[i,j]quinolizines their isomers, derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof. These compounds and compositions possess potent activity in treating local and systemic infections, particularly infections caused by sensitive and resistant Gram-positive organism infections, Gram-negative organism infections, mycobacterial infections and nosocomial pathogens, and particularly those belonging to the staphylococcus, streptococcus and enterococcus groups. Methods for treating the diseases and disorders arising from the foregoing infections in humans and animals are described by administering the compounds of the invention to said humans and animals.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Applicant: WOCKHARDT RESEARCH CENTER
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Shiv Kumar Agarwal, Shirkant V. Gupte, Dilip J. Upadhyay, Satish B. Bhawsar, Mohammad A. Jafri
  • Patent number: 5270182
    Abstract: The novel compounds of formulas I and II ##STR1## have an antibiotic activity.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: December 14, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Christopher M. M. Franco, Dilip J. Upadhyay, Louis E. L. Coutinho, Bimal N. Ganguli, Jurgen Blumbach, Hans-Wolfram Fehlhaber, Herbert Kogler