Patents Assigned to Tianjin North Pharma Sci-Tech Co., Ltd.
  • 2-Substituted phenyl-5,7-dihydrocarbyl-3,7-dihydropyrrolo[2,3-d] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof
    Patent number: 8461165
    Abstract: The invention relates to the compounds of formula I, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: June 11, 2013
    Assignees: Yangtze River Pharmaceutical (Group) Co., Ltd, Tianjin North Pharma Sci-Tech Co., Ltd
    Inventors: Yongfeng Wang, Kejun Zhao
  • 2-Substituted phenyl-5,7-dihydrocarbyl-3,7-dihydropyrrolo[2,3-d] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof
    Publication number: 20100204223
    Abstract: The invention relates to the compounds of formula I, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.
    Type: Application
    Filed: January 11, 2010
    Publication date: August 12, 2010
    Applicants: YANGTZE RIVER PHARMACEUTICAL (GROUP) CO., LTD., TIANJIN NORTH PHARMA SCI-TECH CO., LTD.
    Inventors: Yongfeng Wang, Kejun Zhao
  • 2-Substituted phenyl-5, 7-dihydrocarbyl-3, 7-dihydropyrrolo [2, 3-D] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof
    Patent number: 7745433
    Abstract: The invention relates to the compounds of formula I, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: June 29, 2010
    Assignees: Yangtze River Pharmacuetical (Group) Co., Ltd., Tianjin North Pharma Sci-Tech Co., Ltd.
    Inventors: Yongfeng Wang, Kejun Zhao
  • Process for making substituted pyrrolo[2,3-d]pyrimidine derivatives as inhibitors of phosphodiesterase 5
    Patent number: 7741483
    Abstract: The invention relates to the compounds of formula I, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: June 22, 2010
    Assignees: Yangtze River Pharmaceutical (Group) Co., Ltd., Tianjin North Pharma Sci-Tech Co., Ltd.
    Inventors: Yongfeng Wang, Kejun Zhao